I can't really help with the withdrawal bleed but for my pill I don't have to take a break so idk if you'd want to consider changing pills?
I'm on the minipill and you don't have to take a break in between, I've been on it since June and took a few weeks for my periods to settle down but for me it was 100% worth it as I haven't had a period since July ish. Plus this one, for me, didn't affect my mood and I only put on a little bit of weight, it hasn't had any bad repercussions. This is for just periods too, not for preventing pregnancies. Not trying to convert you at all haha but in case you were having a lot of surgery or will be in the future, it could be worth considering?