Responsible drug use exists, Killa. I can't prove it to you, but I'm sure you could show me plenty of examples that show otherwise. MDMA helped one of my best friends come out of the closet to me and the third guy in our group of BFFs and I am so happy for him to have finally had the comfort in his own body and mind to tell us he was gay. And on his uttering of those two little words I had the most euphoric rush I've ever felt, knowing that he trusts me enough as a friend to tell me the one thing he's held to himself all his life. We had a long conversation about sexuality and interests and while I would normally feel uncomfortable, that is not possible while rolling with friends.
On mushrooms I saw that I am not a shitty person, I'm actually a really fucking great person. I LOVE myself. I used to cut myself, I used to starve myself, I purposely failed Spanish last year for pity and attention. No more, I'm gonna be fucking great. I'm gonna be happy. And I am

On acid I realized that I respect my father. He's been through a lot, his life isn't all that great or exciting, but he deserves my respect.
Basically drugs have helped me to grow up and mature really quickly. I'm not an whining bitch anymore

Oh and tobacco's a hell of a buzz for me still cuz I use it so rarely. I've only been drunk three times in my life and try to avoid alcohol more so than the less dangerous drugs like acid or mushrooms.
Weed is a fun time in the right situation, but I've only smoked once since Super Bowl Sunday after it being a daily habit for over a year. My marijuana dependence (NOT addiction) has faded and I'm very happy about that.