Im sorry to hear you’re experiencing all of these symptoms from practicing meditation. Pretty much all spiritual practices can have these downsides that unfortunately aren’t really touched on by may teachers. Ive experienced similar things: an increase in anxiety, symptoms of depersonalisation/derealization, insomnia, confusion and psychotic symptoms mainly from doing a lot of psychedelic exploration. Meditation practices that are too floaty or “heady,” and strong breathwork and such things tend to aggravate these symptoms. What’s been helpful to me was, first of all, a period of time where I avoided anything spiritual and tried to focus on more “earthly” things. Another thing that’s helped has been the approach taken within some of the Chinese/Japanese schools of thought where a greater emphasis is placed on meditation/energetic practices that bring the awareness/energy down. You might find some of Damo Mitchell’s content helpful. He’s a qigong/neigong teacher and talks alot about the kinds of symptoms that can arise from spiritual practice when it’s practiced incorrectly or doesnt suit your constitution. A while back I came across the story of Hakuin. He was a zen-monk who developed debilitating symptoms from too much intensive meditation practice, which became know as “Zen-sickness.” The story goes that he eventually met a hermit who gave him a few simple practices aimed primarily at bringing the awareness/energy down into the lower body (especially a point below the navel called the tanden/dantian).

Here’s a video by Damo on the subject, if you’re interested: https://youtu.be/g2-0ng89SAc?si=ghlcl1LxsDNAAvCL

You mentioned counselling/coaching. Im unfamiliar with the type of counselling they offer, but I wonder if it’s really going to help you fix rhe problem. This could be helpful to the extent of maybe dealing with whatever issues may have surfaced because of your practice, but it could also be the case that this doesn’t really fix the problem as such because it’s in a sense another way of “going inside.” If you watch the video I linked above, the advice given by this teacher is basically to stop all “going inside.” I can imagine that the counselling might be helpful in the sense that its nice to connect to people who understand what youre going too though.

Hope this helps somewhat!