How do you deal with anger issues and a needy boyfriend

I havent been myself lately and I think maybe its because of my hormones, though it may just be my boyfriend driving me crazy lately too I dont know. I dont want to act the way I have been lately but I just feel so freakin angry and I dont know what to do about it. For example... I want a gps system in my car. Im not in need of one this very moment or anything but the fact that I cant have one right now just pisses me off to the point I dont feel like talking to anyone or dealing with anything because I'd like to break something. I am fully aware of the fact that I am just acting like a childish spoiled brat, and I am trying so hard to control it and not show how I really feel right now. Like im being all nice to everyone and everything, but on the inside I just feel so bitter and angry over this stupid little situation. And maybe its because of my hormones freakin out on me or something, I do happen to be menstruating right now... But this is a bit ridiculous, really now... I just feel so stressed out! Is there like a certain diet that I can use to reduce stress or something? What should I do?

And how do you know if its your hormones that are messing with you? Cause it could also be my boyfriend thats drivin me crazy, really. Like I try so hard not to seem angry or upset lately because my boyfriend is so sensitive its like if anything is wrong with me he gets all sad, and that does cause me a good bit of stress because its like I have no choice but to be happy even if I want some down time to pout a little. So I dont know if its my hormones freakin me out or if im just getting fed up with pretending to be happy all the time. So im just going crazy either way.

So how do I control my anger when I want to break things, and how do I convince my boyfriend that I have the right to just be upset about things sometimes. I think my problem could be that im beginning to resent him for suffocating me. I need space but when I tried to tell him that he cried and started talking about moving away so I backed down from that. I dont want to lose him I just miss having my own air to breathe

I try to get my air from him... but he gets all major league depressive on me instantly. what am I supposed to do about it? I need my space, but I dont want to hurt him. yesterday I broke my cell phone and right away he wanted to go get me a new one so he can keep in contact with me... were together almost 24 hours a day an he feels the need to call me every minute that were NOT together... I told him no I dont want a phone right now because I dont feel like bein kept up with all the time. he doesnt seem to understand that but he didnt go out and get me a phone either so thats good. im trying to back things up a few miles in this relationship cause I know its REALLY fast. im just trying to back things up gradually so he doesnt get freaked out an think I want to break up ya know...