BC and complicated periods

I did a huge mistake a couple months ago, taking plan b while on BC. It has messed up my cycle so bad. I get a period on time, but it never feels like an actual period. Past two months it’s been just brown blood clots with little blood. Now today it was blood clots with red.

It’s annoying. It’s stressful. Just because I get confused...is it an actual period. Especially when it only lasts 3 days

Has anyone experienced anything similar?