Time out

I am very upset with myself on how I handle kaylin sometimes. Like tonight, I have just worked three days straight working non stop..and i come home and immediatly have to hold her, play with her, by which i am certainly not complaining at all. she will only be this age once, i just wish we had a car so we could get out of the house. I feel like when she gets frustrated, i get frustrated, and it just scares me that I'm going to be mean to her. I have to calm down, and just wait for her to stop crying, and then go on to the next thing. but now , like today, i just got so upset i just put her to bed an hour early. Now i feel completely horrible about it. She fell asleep in like 2 minutes, but the fact that i just throw her in bed when i get irritated? Thats not good. these are the days i feel like an awful mother. i just wish i could fix who i am sometimes..i know im tired but i dont feel like its all that great of an excuse. i cant blame her for me being tired..thats not her fault. i love her so much..i dont want to be that kind of mom. blahh =(