I did LSD in my early 20s. I'm not sure it compares to other experiences here but for me it was an incredibly transformative step in understanding how my own brain works.
I also did LSD in my early 20s and had the same experience, it was very helpful to get past some mental barriers.
Then I got complacent and started doing it too much, really put myself in a bad mental state for around 2 years.
Just wanted to add onto this to say that it’s helpful, but you do need to respect it even though it’s not physically addictive. I’m not saying you’re one of them, but in general you’ll find too many people on the internet only promoting the upside.