Not that I haven’t had a bad trip, but when I did it was a result of a clear failure to respect set and setting. Changing the setting put things back on track so I’d characterize it as a “meh” trip rather than a bad one.
Often I experience a massive reduction in anxiety for several weeks following a trip so overall I’d say it’s been very beneficial for me.
Not true at all in my experience. Psychedelics are currently studied to alleviate phobias and anxieties and seem to be quite successful at it. My experience matches that. Set and setting is the most important thing in this regard.
Maybe in a clinical setting, or at micro-doses.
Recommending "self-treating" with something that risks panic attacks or far worse is simply dangerous.
Find a good specialist if you have a problem.
Also generally drug quality is highly variable unless you are very well connected and informed: I've seen young kids take whatever is available and then things go ugly pear shaped (surprise, surprise). Very very bad for health and brain to take what you can get: bad effects can permanently scar your mind and body. At least only take something you have seen someone else take more than 24 hours ago, and take from the exact same batch, as that will filter the very worst stuff out.
You also know the upsides, so there is a risk vs reward calculation.