Advice!?

I need some advice. I am a stay at home mom with a 20 month year old. My husband is always at work so I am alone 90% of the time. I have become very annoyed with my son and I feel so bad. He’s so hyper and needy. He doesn’t let me do anything without having to be right next to me. Even though he has his favorite shows on, snacks, and toys he’s still there when I am cooking, taking a shit, or cleaning. I feel bad for feeling this way but I am just drained of not having time for myself. I give him a lot of my time playing with him, singing to him, reading to him so I give him love too. He’s constantly fighting his sleep to mess with me, poking my face, kicking me, pulling my hair.I sleep until 5 or 6 in the morning because my son doesn’t sleep until about 2 am. So that’s the only time I get to myself. I love him more than anything and would die for him. But sometimes i get very overwhelmed and want to cry... any advice?