Different substances helped me find my place in the universe. I've always been a thinker, and my drug use helped me realize that I was thinking too much and doing too little.
Drugs showed me different perspectives on life in general. I've realized how happy I can be with the simple things I possess. I just let go and went with the flow of my life and environment. This isn't saying that I'm a bum who doesn't have any motivation whatsoever; it's more of "I've learned to accept what life throws at me and make the most out of it."
Psychedelics in particular gave broadened my perception of my "ideal" self - who I could be, how I could relate to other people, how I could live my life. But the psychedelics didn't exactly change the "real" me, who I really was and what I instinctively do. It doesn't have to be so polar (i.e., chase the ideal self while leaving the real self behind), that'd be quite retarded. What I did was blend the two personalities and as of now I'm content with my life.
To sum it all up, drugs have, for the most part, made a positive impact on my life. Suffice to say, however, there are also times when I'm standing on the border between recreational use and addiction itself. It's usually difficult to avoid addiction, but if you love yourself you'll do whatever it takes to stay away from it. I gave drugs a shot because I didn't want to die without any idea of what these substances could've shown me.