I don't know what to do anymore?

I am 28 and have a 19 month old son. Me and my husband have been married for 4 years and own a house. I am sahm but lately I have been feeling really deppressed and anxious. My husband dosn't seem to understand me and I just seem to avoid him bc all he does is critisize the way I do things. He caomes home and immediately finds something wrong with the house after I spend all day cleaning and cooking and caring for our child. He sometimes scowls me in front of people and that's very embarrassing. I feel worthless sometimes and lately it's gotten worse. He says I am too dependent on him but I tried putting our son in daycare and he said they were goiung to abuse him. I suffer from anxiety and lately have been having problems breathing, sleeping, and feeling dizzy. He is actually going to bring his son over to live with us and that makes me feel anxious too bc he's going to want to throq everything on me. I am currently a full time student and want to start writing as I am very creative but don't have time for that or anything else. I just feel used sometimes bc I gave my husband papers and now he's giving his mom papers and tells me he got papers just to help his mom out bc he wouldn't have if it were just for him. I don't get along with his family as I think his mother is a pirannha and goes after what she wants. Well we haven't had sex for a year and it's getting pretty lame. Sometimes he sends messages that he wish he were single again. Quite frankly I do too bc I am feeling trapped and suffocated. I love him but I think the love I had for him is slowly dying as i don't miss him that much anymore and dread when he opens his mouth. I feel like my son would be better in daycare sometimes bc he doesn't deserve to see me this way and I deserve to give him a better future. Has anyone dealth with this?