Not happy anymore

So I have been married almost 2yrs in March and I am not happy anymore. In the beginning before I moved in with him I enjoyed seeing him and spending time with him. Now it's like I just want to be alone. My husband doesn't understand I physically and mentally need go back to work. I have 3 kids(not his) that constantly drive me crazy. I'm sick of being in the house everyday cooking, cleaning, washing. I just want to drive away drop my kids off and never come back.... He is going back to work soon and I'm not its not fair. My job opportunity will pay more money and he doesn't think it's a good idea. My oldest kids are going to school online and my youngest goes to preschool nearby. I know my post is all over the place. It's not like I don't love him or my kids but sometimes I wish I had a life that doesn't revolve around other ppl.