Hey man thanks for sharing! After reading your post twice, I'm here to guarantee you that you'll be just fine. You are always smart to share and inquire anytime you have a bad feeling or whatever it may be so good job on doin that...
In regard to your porn sessions... First of all, know that meth and porn basically go hand in hand.. And dude.. The time spent watching porn that you mentioned was nothing bro.. For some tweakers the time you mentioned is laughable.. So you're good man

.. And as far as the adderall--do you have ADHD? Or did you cop some for recreational purposes? I'm just curious.
Also, what's your life situation if you don't mind me asking. Do you work? Have a girlfriend? I'm also curious as to why you started doing meth.. You're super young dude.. And that's not a drug one just decides to enjoy from time to time.. That's a novice drug called cocaine...I started meth at your age too.. 17 1/2 I think.. I was considerably fucked up in the head at that time and I wanted it to go away... Well it went away alright, and here I am 44yrs old having a tough time STILL... Anyways man, just wanted to share that w u, hopefully I can represent the situation you want to avoid

.. Also-the mentally ill feeling you speak of is gonna take some time man.. Those stimulants you're using make you feel amazing indeed.. But, once you're clean for a bit, it feels like nothing on earth can bring you excitement and you just feel blah and probably a bit down and depressed..those drugs--well mainly the meth induces such large bursts of dopamine each time you use it----bursts larger than your brain can stand and dopamine receptors get damaged.. So right now yours are healing.. Takes a little bit bro...it sucks.. And it's the main cause of meth relapse.. It's vicious.. Anyway have a good night bro