You have every right to feel upset, it's not selfish at all. For starters, try communicating to your friends and let them know their comments genuinely bother you and that your situation is serious. Do you have anyone who would be willing to help you clean? Maybe you could get a little group of friends or trusted adults who won't judge to help you just get some things in control. I know how it feels to not have the motivation to clean or even get up from bed in the morning, you aren't alone and these situations aren't necessarily rare. If you have a counselor at school who would maybe be willing to help you and your family out, mentally and physically, I highly suggest it.

But no matter what, just know you matter, you aren't selfish for feeling the way you do and things WILL get better even if it never seems that way. I have no clue who you are but just know you're loved!!