I'm really gullible when I'm high..

Like seriously I can't decern the difference between rational and irrational when i'm high and I start tripping out from my friends telling me stupid shit. Anyone have any tips to help me out while I'm high to keep me from believing this dumb shit?

smoke with a different bunch of mate's

Smoke more, get used to being high, then you will be ready to not believe stupid shit!

Both of the above answers combined would be my opinion.