I guess it depends on how fucked up your dreams are.
The worst thing about shooting coke or crack is where you go in tends to loose all feeling & the more tweaked out you get the more sloppy you become trying to hit the vein. I seen people so fucked up fon a IV crack session they gone into an artery without screaming the place down (trust me if you never shot up before if you hit an artery it feels like boiling water mixed with an electric shock going through your body, it really fucking hurts & I mean it is some next level pain, you cannot mistake that feeling & that just shows you how numb coke can make it for people)
Shooting cocaine on a regular basis is like a death sentence. I mean crack is worse enough because it fucks up your life so bad, because all you do is fiend for more and you're always broke and spend your money in a matter of days when you get some. At the heights of my crack addiction( now manage to do it only once every few months) my place was an utter mess, i was on paranoia the whole day after the second pipe and i didnt shower for days or brush my teeth for 3 days in a row. This behaviour developed slowly and everybody saying they have it on control will loose that control after some time. How long that it depends on the person and the amount you smoke daily. What accelerated that behavior surely was my grandma dying which inherited me about 10,000 €, which were gone after a few months and that with flipping alot of crack,i if i didnt done that it would have been gone in 2 months. At the start when i got the money my days consisted of either buying 5 grams directly or if the powder man answered faster i cooked it up myself. Then i would smoke for 2 days till its gone, sleep for 16 hours, wake up and repeat the cycle, all while eating virtually nothing.
Crack is worse enough,but with shooting cocaine you can add vein destruction, possibly overdosing, which is hard to do smoking crack(but not impossible) but easily doable with iv cocaine. Only did iv cocaine a few times and this shit scared the shit out of me. The rush can be so overwhelming and dosing is difficult, especially when you dont have a scale. It can easily happen that put 250 mg instead of 200 on the spoon and it may be 85% cocaine instead of 50% cocaine, which can send you over. Also after the first rush, you veins are so constricted and you're tweaking so hard that hitting the vein becomes a mission. A mission that can fail sometimes and caused me to cannot walk for 2 weeks because i missed a vein in my foot. this is when i stopped doing that shit and i wont ever do it again. Its just too dangerous and the rack rush isnt that much worse if you know how to properly cook crack yourself and smoke a huge rock in one go.
The dumbest drug combo i did, which put me on the verge of overdosing was taking soma(carisoprodol),which has effects almost identical to barbs, along with a high dose morphine sulphate. Note: i didnt have tolerance to soma, just bought it off the darknet and stupidly decided to mix those two and also take a very high dose of morphine(for my standarts). I nodded off and woke up to almost not being able to breath, i could easily died while sleeping. I had to take a walk and had to severly fight nodding off while walking, i must have looked like a fkn zombie. the thing with opioid od is that feel you breath being depressed and if the dose is not way to high for you to survive, you have some time do something about it and call the ambulance.
With iv cocaine you can feel that the rush gets too overwhelming and a few seconds later you can already drop dead, no chance doing something about it. Also when you get into that dose territory, you almost feel paralyzed and its like train running you over. Iv cocaine is so caustic to your veins with all the residues of chemicals and the constriction of your veins is also dangerous
