Feeling like a failure

I feel like an absolute failure in everything I do.. I can’t keep my apartment clean, I get so frustrated with my 18 month old son and I’m soo drained after just a couple hours with him, I can’t seem to stay at a good job, and I find a good babysitter for my son. I am trying I really am but I’m almost at my breaking point. I don’t know what to do anymore...