How can I motivate my parents?

So we live out in SLC and I'm not close with really anyone and neither are my parents. I suffer from depression and anxiety too but my parents almost have it worse. Whenever I try to urge them to do something as a family or try to get more involved in places, they just say they don't want to or that we'll do it sometime but it never happens. I really want to get involved at places and help get my mind off of things but it seems like my parents don't care. And I've tried talking to them about it and asking why and they'll either acknowledge my feelings and brush me away or they'll say "we don't have enough money". No I'm not asking them to take me out and buy me things, I just want them to be more motivated and want to do things not only for me but for all of us. It's really discouraging when the only person i can rely on is myself :/ any tips or advice? Thanks in advance =)