I've never tripped before, but I want to try LSD.

I have been into drugs for about a year now and I have done (from most used to least) cannabis, amphetamines, hydrocodone, codiene, dipenhydramine (Benadryl) trip, and that synthetic weed bullshit.I have been anticipating LSD for a while, but I'm not sure how to prepare. I was gonna trip with one or two other friends and have a sitter and go to a field where no one can see us. I'm mostly nervous about having a bad trip because I had one on legal, but I learned how to take whatever the drug throws at me. Any advice I might need?