I know this thread is a little old but please listen to my advice, although nothing qualifies me to give you advice, i do think that i am a intelligent, reasonable and responsible person.

It's great that you have stopped the drugs and hopefully that has helped you. Your friend sounds 'doddgy' to say the least so you should probably break contact with him. But most importantly if your mental health and well-being really reflects what you have posted here you should definitely seek professional help, such as a psychiatrist.

I do not think that a few posts on a pua forum can provide you much help, especially as no one here has meet you in person or is actually trained to give out mental health advice (not an attempt to belittle on anyone btw). So i think you should seek professional help, good luck man and take care.