Does anyone else just feel like they are a shitty parent?

I know in the grand scheme of things Im better than a lot of parents, I dont use drugs, I dont abuse my child, I feed her, she comes first, I love her etc etc but oh my god I feel like I am just not good at this!My 2.7 year old is hard work, EVERYTHING is a battle. Obviously I love her to death and she is my world but I feel like she deserves better than I give. I can get so impatient and so quickly turn from fun loving mum to angry yelling mum, it must confuse her so badly. She needs more stimulation than I can give, but due to severe separation anxiety I am it for now. I am burnt out, tired (she still wakes multiple times a night) but above all else ashamed! Why cant i keep my cool? How dare I yell at an innocent toddler? Fuck I need help, its at the point now that sometimes when I yell she laughs, she is that used to it. So when she is in actual danger nothihg I do stops her instantly because she's becoming desensitised to it. I use time out for punishment but cant say it does alot.Im surprised, i thought i would be a better mum than this, she is all I ever dreamed of. Anyone else feel this way? via /r/Parenting https://ift.tt/2KWN2Bz