Don't do it unless you can free up 14 hours of happy time in a week where nothing goes wrong and your mind is completely happy.
Otherwise you'll get paranoid from the slightest thing, become depressed and go into a downward spiral.
People say LSD didn't mess them up but the truth is is that it affects different people differently. It might change the way you think about the world forever, and that can be a negative thing.
Yes, it's an amazing drug... but it can fuck you up for a looooong time. I did it for the 2nd time a few months ago and I'm still not the same as before :(
Also, around here you can get it for $5 a tab, and trip for almost 14 hours