Why do I cry at everything?

hi im 13 and i cry all the time whenever im sad, angry, arguing, and especially when im stressed or frustrated my jaw will tremble my throat will start to hurt and my nose runs and turns red and sometimes if im really upset i will start gasping and hyperventilating and wont be able to talk without my voice breaking ive been crying alot more ever since i got my period at 10 ( i know that could be part of the reason) but my sister dosent do this and im passed my period right now and im crying cause my mom gave me 2 lessons of math to do instead of one and im stressed please tell me a way to control myself better and stop crying its gotten so bad my mom dosent even care when i cry because i do it to often when i cry in front of her when we are arguing she says oh dry it up that doesnt work on me