Vent away, and accept my sympathy. I understand that you simply cannot stop being a JW without consequences. It is easy for some to suggest you just don't go in field service or just tell everyone what you think of JW's. But it ain't easy to be in your shoes.
If you hope your parents will help with college, good luck getting JW's to do so. They might. Make getting into college a high priority and look for ways to do it. Maybe you will be on your own, but just maybe they will come through and help after you have worked so hard for that.
My suggestions: As far as field recruiting goes, if you feel you must keep going because you are baptized and living at home, then do a lousy job. Pretend to ring some bells and don't actually push them all the way. Just offer the mags without any real presentation. Don't keep track of "placements" and don't have any "return visits" of any consequence. Keep your hours low no matter what. Even if you were dragged out a bunch, write lower hours.