Hey @Joseph06__,
there is a good chance for you getting better if you stop all drugs immediately and for the rest of your life. Even Cannabis, Alcohol, Nicotine and maybe coffeine for a while.
Try to eat healthy, do sports and distract yourself as much as you can. Try not to google that much. Anxiety is a big part of hppd and it can create symptoms that are comparable to hppd.
Youll have a hard time now, but many people get much better after some time. Some ppl are totally healed after months or few years.
And even if youre better. Never touch drugs or alcohol again. Sounds hard in the first place, but hppd can come back so much worse.
stay strong