Idk if i'm depressed or not?

okay well recently ive felt like i might be depressed. i'm home schooled and all i do is chores and babysit for my mom because she just now started college, so did my dad so he's either at work or school. i only get out of the house like once a month and then everytime i ask to do anything else my mom's tells me that i JUST went out and that i should stay home for the weekend. i can't sneek out to see my friends either cause they're all an hour away the only way i talk to them is through facebook and i dont even have a phone. i have an irregular sleeping pattern because i'm busy all day and then the only time i get to do hw is at night. now i mean i'm a pretty happy level minded person, that's just part of my personality but ive been feeling so miserable and so i'm pretty sure i'm depressed, even though my mom likes to tell me otherwise, she says i'm being selfish, i really dont think i am. i don't mind helping out around the house, but to just constantly doing it makes me miserable.