Reminds me of myself, I started education when I was like 12 cause education in England is f*cking horrible sometimes and my school was so bad it got shut-down. So I always struggle but I really want to learn so I just keep trying.
Got me pretty far in the end. I moved to NOrway when I was 12 so much better education here.
And I find that challenging yourself helps anxiety.
You seem really intelligent, perhaps too intelligent to be a childrens teacher but I respect that.
I could teach after I get my masters but I think I'd prefer to work in space agencies and then inspire people and help them learn physics in free time, could be anything from school visits to documentaries.