^^^ because they are what it takes to get me where I want to be. Kind of therapeutic in a morbid sort of way
I use DRUGS because they are the most effective tool I've yet discovered to empower me to achieve what I want to achieve.
I am a person with very simple motivations; My sole ambition is to maximize MY PLEASURE; Luckily for the rest of humanity, I have developed a very powerful SUPER-EGO (desire to abide by the "morals" ingrained in me), and the principal "moral" which guides my life is that I should do everything within my power to alter reality to maximize the HAPPINESS of all mankind (I don't know why I should care, but apparently I was punished enough as a child that I feel DISPLEASURE whenever I see another person suffer). Also, unfortunately I was given the gift (curse?) of having enough intelligence to constantly SEE (in my mind's eye) extremely complex methods in which I can benefit (or at least improve the probability of my actions benefitting) humanity in some way.
Thus, to grossly over-simplify my "Master-Plan" for "improving" the world (albiet according to my own definition):
Step #1 = Gain as much control of reality ("power") as possible, by LEARNING (a trade, about life, about myself, about love, about humanity, about reality, and logic), ADVANCING MY CAREER, SAVING ASSETS (building equity), MAKING FRIENDS AND ALLIES, BUILDING A GOOD REPUTATION, CREATING TOOLS, and IMPROVING MY EFFICIENCY
Step #2 = Use my control to achieve my goals (improving the world) by TEACHING WHAT I HAVE LEARNED, HELPING OTHERS (especially allies), SUPPORTING WORTHY CAUSES, DOING GOOD DEEDS, CALLING UPON SUPPORTERS FOR ASSISTANCE, BUILDING TOOLS TO IMPROVE THE WORLD THAT WILL LONG OUTLIVE MY HUMAN BODY. All of these tasks will be much more effective thanks to the CREDIBILITY and EFFICIENCY which I had spent a lifetime working upon.
Of course, due to the fact that we never can know when we're going to die, and that I feel it would be a shame to have "wasted" all of my efforts (labor) towards building control, I've decided that my optimal approach is to devote a percentage of my time (time = money = influence) towards gaining more power, and the rest of my time towards USING that power... Obviously a newborn will not be expending any effort towards changing reality, while it is illogical for a person on their deathbed to be LEARNING something, or IMPROVING their SKILL at some task... If everybody knew the exact day that they would die, it would be optimal to spend the first half of their lives developing skills, and the second half of their life USING those skills, however since we all can die at any moment, the percentage split will begin with 100%/0% at birth, and gradually change as appropriate until it reaches 0%/100% at some point before I expect to die. Personally I am guesstimating my life-expectancy to be around 75 years, and so accordingly, I'm spending about 70% of my time honing my skills and 30% of my time using them to benefit society.
Taking into consideration stuff like the time-value of money, and the interesting distribution of death rates versus age, the optimal solution is not quite linear (I had a math-expert explain this for me once), it is a wize strategy to work your ass off, but still take some time to enjoy life, and make other people happy whenever you have the opportunity.
So... to put up with all of the bullshit that living and working my ass off in today's fucked up world entails...
I use drugs to enhance my compatibility with reality, for some god-forsaken reason I (and the rest of humanity) am not PERFECT, yet the world PUNISHES imperfection, and REWARDS perfection. As it is my highest ambition in life to achieve enough POWER to make a difference in the world, I must do everything within my power to maximize my probability of achieving POWER... This involves WORKING MY ASS OFF and NEVER WASTING A MOMENT OF MY LIFE...
I don't have the ability to WAKE UP AT THE SAME TIME EVERY DAY (fucking bipolar disorder and sleep disorders), BE MOTIVATED TO PREPARE FOR WORK, FACE THE DAY, and DRIVE TO WORK and ACT PERKY every day, so I take METHAMPHETAMINE when I wake up.
Methamphetamine is also the ONLY WAY I KNOW OF to sit in 1 place 8-10 hours a day, 250 days a year, doing thousands of mindless, thankless, boring, irrational tasks just to make a group of people I hate a little wealthier, just because I need MONEY to pay my rent/tuition. (is it ADD or is life just lame?)
Methamphetamine is the ONLY way I know of to motivate myself to answer long lists of trivial accounting, sociology and business law questions, just to get a certificate from an institution which will make me more employable.
I don't have time to sit at my desk thinking about how bad my back and arms ache, so I use OPIOIDS...
I don't have time to dwell upon how badly my head aches, and I don't have time to pay some part of the "entertainment industry" to entertain me with some unoriginal crap, so I smoke MARIJUANA.
I don't have time to lie awake in bed worrying about everything wrong with my life and the world, so I take BENZOS...
I don't have time to be as social as I would like to all of the people that I love every day (sad as that sounds), and most of them 100s of miles away anyways, so we all meet up once every other month and have MDMA (or methylone or MBDB) so I can CRAM as much happiness and sociability and "bonding" into 6 hours as humanly possible - to fulfill this HUMAN NEED for HUMAN CONTACT, so I don't lose the ability to function due to misery.
I don't have time to sit around fantasizing about death, wishing for suicide, praying (?) for NOTHINGNESS (NULL), so I sniff Ketamine, inhale nitrous, or smoke 5-meo-DMT.
I don't have time to sit around and philosiphize all day, so every other month, I take some ACID, 2C* or MUSHROOMS to think about why all this bullshit is worthwhile.
To sum it all up, I use drugs to put up with my fucked-up job, my fucked up commute, fucked up people, fucked up politics, fucked up society, and all of human pain and suffering (mental, physical, psychological, spiritual).