how to take shrooms?

I’ve dropped acid a few times and had fun. The only time i started to have a bad trip was when I took 3 tabs and smoked weed but I was able to mentally prevent anything from getting worse. I haven’t done shrooms before but i’m getting an 1/8th. How much should I take? I’ve always seen people put them on peanut butter and jelly sandwiches, is that what I should do?