Overwhelmed

I'm sure every mom goes through this at some points maybe even many times, but I'm sure I'm pretty close to my breaking point. I don't know what to do I have tried talking to friends and my lovely husband but it doesn't feel like I'm getting through what I am feeling I thought that maybe if I started writing that I would be able to get it out and trust me im not aiming this at anyone and I am definitely not trying to get everybody to feel sorry for me I just need to vent! I really appreciated Nathanael being home for roughly 6 months. Some days I even took it for granted that I could make a phone call, check my email and simply have a shower without being hollered at or interrupted in some way. Even as I sit here and write this Kaity is screaming, Carver wants milk and the kitten is even crying! I know that this is all part of being a parent and having 3 babies under three. Nathanael has been back at work for a month and I have experienced having to go grocery shopping with three kids all of which have to be in the cart or they will disappear. not fun and where the heck do you put the groceries I wish I could have taken a picture of that one. I usually wait to have a shower till he gets home but by that time I'm too far gone and just want to sit on the couch or go to bed! Some days I put a movie on and Kaity in her bed (where I know she'll be safe)and sneak off but it never fails as soon as I get shampoo in my hair or shaving cream on my legs someone is calling, or crying or the phone is ringing. I have some major struggles going on right now with certain people in my life that I wish I didn't have but that's life right and I'm also working one to two days a week to have extra cash and a little break. I've been especially frustrated with the boys, and I really don't want to be. They know all about the potty, they know what they are supposed to do with it and they do it when THEY want but not consistently and it never fails that when they are not wearing a diaper that they pee or pooh all over the floor URGH! like I said before I am having issues with certain people and I have concluded that my biggest problem is that I cannot say the word NO!! Those people in our lives are adding to my Chaos and I cant just step up and say no! They are cosintly intruding on my life and I want it to STOP! I love my kids and their is still lots that I need to learn and say but I am having a difficult time!