You are already well into fading and your parents have clued in. It will really only become a problem if you get married in a church or get born again or something(things they can't really ignore)-they are likely more aware of what you are up to than you think. Start missing more meetings. When the elders or magazines say something really controlling, illogical or stupid(so obvious that they can't deny it)-mention that point. Mention that 'doesn't that paragraph seem really manipulative?' "Do you ever wonder about . . . ?"
If you are asked point blank, think about this. You could tell them that you respect them and never want to hurt them, so you would rather be thought to be weak than to open your mouth and be an embarrassment to them (we mean DFd and they know it, but some things are better left unsaid-they don't want to go there!) The only reason I say this-you don't owe the org anything, but your parents can be made to understand that you don't really buy into it, but you aren't going to embarrass them publicly out of respect for their feelings. That is a huge concern for most. They love you and will worry. If mom pushes you into a study or elder meeting-don't do it. Just say no.
WELCOME. Your English usage is better than most of ours. No worries. Sorry for being bossy.
The meetings are a pain in the butt-literally and metaphorically. They are redundant, boring and a waste of time. And you don't need to hate the WT or JWs to think that or say it.