I feel like shit

I don’t know what is wrong with me. I am a working mom, and I do my best to spend quality time with my son, 2.5 year old, but I mostly end up turning on the tv and try not to cry. On weekends, when I am with him all day long, I feel like I want to scream towards the end of the day because of the overstimulation. He never plays independently, he wants me to “talk to” his toys, he never lets me sit in peace or do something on my own (if he sees that I am making a coffee, he starts crying because why he didn’t make it with me??) he always demands something. Today, I took him out for a scooter ride, and just after leaving the house, we had to turn back 3 times. To get his kneepads, his lollipop, his toy, his bag, which he refused to let me take them while leaving. Then he started crying and screaming after I removed his kneepads as he demanded. At that point, I snapped and said that is enough. Then I felt guilty. Still feeling it. I am so fucking irritable and impatient and I blame myself and I don’t know what to do. I try to put him to sleep when I am home. It takes at least 45 minutes every.fucking.time. At some point, after doing my best and telling him stories and back scratches and songs, I lose it and raise my voice and say that is enough if you dont sleep i will go downstairs and papa will come. Then he sleeps. And I feel like shit again. Every mother I see in the park seems to handle those moments way better than I do and I feel like shit. I don’t even know what I expect to hear. I am so lost.