Ive done hard drugs every day for a five to ten year period in my life, cant remember exactly how long. It can exacerbate latent mental illness, but if you stop taking them for long enough you may feel more normal.
This is just my experience, so obviously if you think youre struggling to function, you should probably tell someone. Id see patterns moving in things for a few years after, tracers with movement, and driving through tunnels gives me strange visuals / flashbacks to this day, some other stuff too.
Ive taken enough drugs at one time on multiple occasions to give myself full out of body experiences. They were not fun for me, they were terrifying, and they really made me question the validity of every waking moment for a long time. Such a simple thing to type, but when it happens to you, it so, so profoundly affects you. For me it wasnt beneficial.
I developed panic disorder which ive since treated with alcohol, which just led to dependency. I guess this sounds like a blog now, but I think Im trying to say to be careful, have fun exploring, use moderation, quit when you need to, and seek help if you need to.