I am impacted for life in many ways from abusing LSD and DMT several times a week for over a year. It's interesting how the stuff deranges your mind like a parasite almost (the ones that latch onto crickets and make them suicide into water), so that you become more and more obsessed with using the drug... You begin to not really notice or acknowledge the side effects as it overtakes your mind.
Some interesting side effects from the DMT abuse:
1) Severe memory issues. You know when you open a tab to Google something and don't remember what it was? That happens 24/7 but with everything, including why I walked into a room, where I was going when I start driving, list goes on. I lose my phone every day. Encompasses every aspect of memory.
2) I trip every time I wake up from sleep. If I slept deeply for some hours anyway (doesn't happen if I only slept lightly). I will be in a psychedelic state of mind for about half hour or more after waking.
3) Bizarre intrusive esoteric thoughts literally every single day. I have religious thoughts far more often than I think about sex.
4) Loss of libido.