I think you're so brave to have pushed through so much and then go through some major life changes that would stress anyone out.
I think this will pass. Moving is a well-known stressor without all the additional stuff you have had to deal with, and your mental health on top. Hopefully once you've got used to the new place and things are sorted with your mental health team, you'll feel more supported and stable. Are you aware of crisis and maybe voluntary community services you can access in the area in the meantime?
Whether managing mental health ever truly stops, I honestly don't know. I have faith that things get better, though, with more good times and shorter bad times.