If you cut a tiny little sliver off and bruises blue/purple that's an extremely good sign it's psychoactive. It isn't full proof and you should still take numerous photos from every angle, especially under the cap where it's growing out of and submit the pics to mushroom ID websites or even reddit to get at least a few answers to be confident about it.

Also if u live in CA or possibly other states you can sometimes bring the mushrooms to a college with a mycology department and to have them ID it. I've used UCSF for this in the past. Obviously I'd call first to make sure they'd be okay with that. A bit more work than the other methods tho tbh if you're not close to one