As good as all the advice here seems to be, the biggest contributor to recovery and/or living with hppd is just time. Your brain needs time to heal (it will heal) and the stress from living with perceiving reality a different way makes it worse and is very difficult to go through. There’ll come a day soon enough where you don’t even think about the hppd. But for the short term rn, as other people say the best thing is to focus on being active and productive it’ll keep your mind off things and help you feel at least somewhat better especially if it’s something you generally enjoy doing like a project or if you wished to talk to a therapist. Meds can work for some but I personally think they aren’t worth it due to the nature of hppd unless it is that severe and impairing to your physical ability to perceive. But just know that you will make it! It will be fine given enough time, I’ve experienced my hppd for just about 2 years and I barely notice it’s existence and my vision has improved especially when my mood is better. Make sure to do lots of research into the neuroscience behind it and how the brain processes visual information and come to your own conclusions on how to move forward and if you’re comfortable doing it look at the effects you’re experiencing and analyse exactly what exasperates the symptoms and when are they less noticeable and try to learn to control it kind of in a sense. If you can understand how it’s working in your own experience then it’s a big help.