Am I a bad mom 😭.....?

I am a first time mommy...most of the time its easy to take care of my baby but lately he has been crying so much and I've been so stressed. He is four months old. He doesn't take his pacifier he just sucks on his thumb and fist. I get frustrated when I've done everything I can with him and I out him in his room to cry it out...I've done it a lot lately...personally I don't think its wrong...but am I a bad mommy for it. Its my first baby 😭 I feed him 24/7 and change him 24/7 . My hubby doesn't help a lick...and I just want time to myself and of course he doesn't want to try to take care of the baby for a little bit. Please help 😭