I used to have toothpaste that was very minty and I found out that kid's toothpaste isn't as strong. Hopefully it helps you:)

I use flavoured toothpaste I got them from archie they've got a massive range.there toothbrushes are good to and heaps soft

Idk if Boie toothbrushes will be good for you cuz of your braces, but maybe you could try them?? They were so gentle that I thought they weren’t gonna clean my teeth, but they cleaned them better than any manual toothbrush I’ve ever had! Also maybe a water floss thing could be better for you? I’ve been looking into getting one of those as well because I heard it doesn’t hurt and it’s easier to use Wishing you luck in finding what feels right for you!