My 2 year old behavior is making me depressed.

I need some serious advice.

I feel the worst mom saying this but my 2 year olds behavior is starting to make me depressed and honestly feel like I’m staring to detach from him because of it. I’m also currently pregnant again unexpectedly and maybe the hormones are playing apart in these feelings but he’s just getting worse and worse and I’m starting to get anxiety about the other baby coming. I love him with all my heart but the constant melt downs are taking a toll on my mental health. I’m almost to my breaking point and idk what to do to help with his behavior. Literally EVERY single other child in my family who is close in age to him has never behaved as bad as he does. I can’t even brush his hair without it resulting in a full blown ear ringing screaming crying hitting smacking back arching throwing himself onto the floor melt down and I’m just over it. Every single time we go in public I literally end up crying my eyes out and having a panic attack and leaving because of how embarrassed I get, he has meltdowns in the store, meltdowns at peoples houses, it doesn’t matter where we are he’s just AWFUL. He screams at the top of his lungs, hits me, kicks me, pinches me, rips my hair out, throws things at me, head butts me, you name it. I hate feeling trapped at home but I would rather stay home every day of my life than take him anywhere. Even at the park I try to take him to burn some energy thinking he’s just acting out from being couped up but after 20 mins max of chasing him around, trying to keep him from running away from me or jumping off the play set, trying to keep him from wallowing in the dirt, etc. I of course end up in literal tears and we leave because I just can’t bare it. He’s been evaluated for mental disorders and Autism it’s none of that so I just don’t know what’s causing him to act like this ALL the time. And before anyone says it’s my fault or asks what our schedule is or bedtime routine etc etc I have done everything in my power to keep him on a strict routine. He gets plenty to eat during the day, plenty of exercise, plenty of sleep, like I said I’m at my breaking point and I just really need some advice before this second baby gets here because I’m having a lot of anxiety wondering how in the world I’m going to be able to take care of a newborn with him acting this way.