I don't recall from your previous threads if you are still living at home or attending school somewhere else. While living at home has some benefits, if you are going to school somewhere else (even nearby) you are in a good position. First, attend a meeting or two at the 'away' cong. Maybe even go out in service once (if you can handle it). Tell them that you are travelling quite a bit, to be back home as often as possible to help your family, so they shouldn't be suprised not to see you all the time. The 'home' congregation will assume you are away. When you are back home, attend a meeting and drop a few names from the 'away' cong, especially important if someone on the 'home' team knows someone on the 'away' team. They will check.
Then, stop going all together. I got away with this for over a year. It was a great chance for me to get my head in 'better' place.
If you are still dependent on your parent's support, you will need to play a different game. But it can be done. Don't give up. Your life (the rest of it) depends on it. Hang in there. You are doing well...