hello, welcome to pc ^^
and i'm sorry to here about you're situation
my mom had been in this dependet situation, the marriage was becoming hell and she wanted to leave but she didnt had money to support herself and me so we stayed for years
i kinda know how stuck you feel :c
but you didn't mention what kind of person your partner is, you think he wouldn't support you at all if you tried to talk to him?

anyway i hope everything works out with your jod, or that you find a new and better one soon <3 ~~virtual huugs~~