Breaking. Baby is SO hard 😭

I'm a sahm and I feel like I'm breaking. My boy was born a perfect eater and sleeper. I got so much done around the house. I tried to help teach him things. It was great. At 3 months he got a cold and we both went crazy for 10 days. Then he never got back on track. A few weeks later he got another cold and things got even worse. He never slept. He turns away from the breast. He screams all the time. He hates everyone but me but sometimes also me. Fast forward to past leap 4 and the sleep regression I get us back on kind of a schedule. I get him in his crib so I can have some of my life back at night. He's still getting up 3 or 4 times a night but that seems like a dream to me so I'm dealing with it. Then he gets sick again and oh my god. I had to have my husband stay home from work it was so bad. It's been a week since his symptoms went away and he still hasn't slept. On top of the 10 days he didn't sleep when he was sick. Daddy is trying so hard to help but it's so bad. Every night I could cry harder than the baby. I dread going anywhere because I know he's going to throw a fit. We can't even leave for an hour date in the afternoon without him freaking out. I already have my grandmother over twice a week now to help me with housework because he's SO difficult and now hubby wants mil to come another two days a week. HOW MUCH OF A FAILURE DO I FEEL LIKE now that 4/5 days a week I need full time help with my baby. I should have just gone back to work at this point I'd probably need less help!