Frustration

Stefanie
I'm noticing more and more that I can't get along with my mom. We fight and bicker  over ridiculous stuff. I have a short temper and get frustrated with her very easily. Simple things like her telling me to do one things makes me upset and not want to do it. I try to control myself and not lash out at her but it's very hard. After I hold it in for so long I cry because I am angry and then she tells me I'm being a baby about things. Little things she does makes me upset, such as her not putting something where I thought it needed to go. 
I am only 16 and my parents pay for most of my stuff so if I lose my temper that leads me to getting grounded which I can't do anything about because they pay for it.
How do I get help with this??? Any suggestions on how to help me control my attitude with my mom and try to talk to her. I really do try hard to just talk to her in a normal voice when we are not agreeing. She still tells me I'm yelling and having a bad attitude but by the end of our conversation I just want to scream at her and tell her how I really feel about it. Please help because I'm really in a rut at the moment.