Hi from Slovakia, neighbour :-)
Your situation is very complex. Since you've already tried the conventional approach, I'll give you a few alternative tips that you might like to check out.

-mindfulness John Kabat-Zinn: The Full Catastrophe Living (there are also his videos on yt). This can seem silly in a way but I've been practicing only for 2 weeks now and I can already see some difference

Somatic experiencing
EFT tapping
there's quite a large research on the impact of gut bacteria and impact on brain and mood

I hope you'll find something that will help you!