I feel like no one understands what im going through??

Im stressed right now with school and everything. I feel like im virtually failing my most important class which is my math class. I have two jobs and I really dont have much time to mess around right now. And she expects me to come in to work tonight just because she needs to be upfront. Its cold where we live its supposed to be snow tonight we only had 40 some people last night. Im sick of it. Im sick of life. Idk what to do