Or rather, ways you haven't done them. I have a lot of experience with amphetamines. Mainly smoking and drinking meth, and popping a shit load of dextroamphetamine. And my protagonist also does.. But i've hit a bit of a dilemma. It makes sense for my protagonist to be partaking in extreme behaviour like intravenous use of meth, and I have known plenty of people who use it this way, one of my best friends, who thankfully has beaten it now. My question is, would it be disingenuous to describe my protagonists experience of shooting up if i haven't done it myself?

Half of me is like well, besides the fact that it would be stronger, i have definitely felt the bright cool light of amphetamine intoxication, also having my best describe it vividly.

And the other half is like, this could make me as the writer look lame.

I do so however see fiction writing as acting and entering many experiences one will probably never undergo.

Much appreciated for your replies in advance