Going through depression.. I think?

So when i was 3 my dad was abusive my mom was an alchoholic and i had 2 demon experiances i was adopted but my bro makes fun of me bc of it a few yrs later at the age of 6 my friend and i got in a fight the last thing she said to me was at least i have a dad lets skip to age 11 i figured out the guy i like likes my best friend who is also very selfish at age 13 (rightnow) ive been thinking ive never had a childhood instead ive been taking care of my sis cuz my adopted parents dont love us as much as there son every morning when i wake up i think about what it would ve like to be loved and im rarely in a good mood i know there is a God but does he love me... Or even care about me or dooes he think that im not worth to think about please help me are these good reasons to be depressed and who should i talk to about it should i get a mentor or just keep it in like i have for All 13 yrs i my life cuz ive never shared this with anyone plz help and thx for reading