I think that you definitely have the correct idea, of course you need to care about the money in some way, but if you want to win more than you want the money, then you are on the right track.
I have played poker for a little while and i really know how you feel. I have made deposit after deposit and seen it all fly away. So my main tip to you is that if you start losing, or get into the wrong mindset, your game will suffer, so take a step back and STOP STOP STOP
I have now decided to take a Chris Ferguson style scheme, and i am going to build up my BR from freerolls
If you want a mentor then i doubt you will want me, but keep playing, and trawl through this site and find posts by people like Alien Genius, Dorkus Malorkus, Jaketrevvor, their posts will help you, just like they helped me