My body hates me

Urgh, since having my son 1.5 years ago, it feels like my body is constantly at war with me, after 89 days my period finally arrived, and now I'm on day 10 or 11. I'm so tired of my hormones being so out of whack, I've gained so much weight because of it, and being high stressed and single parent working a day studying 😭😭😭 the doctors are still doing tests and I just want my periods to be normal!! I just want to feel normal!!