I’m failing! I’m done!

My son is 3 and out of control! I try so freaking hard to gentle parent I do. I’ll walk away count to 10, then go back and try and explain things to him and he’s just so bad it’s not even funny anymore. The last 2 days he’s been nothing but a brat! I’ve tried time out, I’ve tried taking toys away everything I can think of. I’m just so frustrated. I feel like I’m constantly yelling at him and that makes me feel like such a terrible parent. The way this kid acts makes me regret that I’m having another baby. I’m 9 months pregnant and I’m currently bawling my eyes out because I’m just such a terrible mom and why would I ever think of bringing another child into this world when I can’t even control the child I have. I love my son to death and this boy is so loved and taken care of. But I think I have spoiled him so bad that I regret it. I try so hard to be nothing like my parents because they abused me and all they did was yell. But I sound just like my mother when it comes to yelling and I hate myself for it. I’m failing my children already.