I'm sorry. I'm not sure how valid my advise is. I don't even know whether I should comment or not. But here I am... I come from a different cultural background, but to me your hubby sounds like a 100% momma's boy and your family in law should mind their own business. Especially his mother. You aren't wrong. You aren't bad. You aren't a disappointment. Everything about this situation sounds like old-fashioned over the top conservative bollocks. You shouldn't need to fight for your right of living your own life. You shouldn't feel trapped. Because that's what they do (Energy vampires). Or at least it sounds like that to my ears.
Your husband is stuck in the past and sounds like one of those "women should behave" numb-nuggets. Then there's the stereotypical "dragon" mom. It's 2022.
I don't want to give up, but if he keeps taking his mother's side and didn't consider my feelings, that I need him, how is he my husband?
...........
I found out that he didn't even know why I was upset in the first place... I mean, he didn't even listen to me when I exploded and talked about many things?
I'm very sorry... but no. He is not. You should be the priority. I... ah. If he magically doesn't make a 180° turn very soon then I don't see how this will last. To be frank I can only see it getting worse from here on. He showed you his face after making this marriage official. Either "divorce" yourself from them or you bend yourself to such a painful degree at which you aren't even yourself. I don't think it's wise to let this "recent" thing turn into a sunk-cost fallacy on your side. Go while you still can.