Alone time is something nonexistent now

I just need to rant a little bit, I am exhausted. Not so much physically but emotionally and mentally. Tonight I got mad at my husband and my child because I just wanted to finish all the shit I had to do before putting my child to bed. I got mad because my child was screaming his head off and crying calling for me, and my husband was passed out snoring so I wasn't able to finish what I was doing. He works 2 jobs so it takes a lot out of him and I know he is exhausted but tonight I just lost it. I just want a break, not a long break but just 30 minutes an hour at least to be by myself ALONE without someone asking me to do something, without a toddler stuck on my boob or crying for me and without someone pulling on my shirt for my attention. I am a stay at home mom and I rarely go out with friends or even without my child. I love my kid more than anything but I just want a small break. What's worse is I feel horrible for feeling this way, I feel like its wrong for me to feel this way. Like I dont deserve to feel this way because I'm a mother and because I dont work like my husband does.