The one I was using (fmovies) seems to have shut down, and all the ones that I have tried since seem to be down half the time. They'll go down right in the middle of my movie, and then won't be back up for at least another day. It takes me like 3 days to watch a movie.
I don't even know what a private tracker is
Sorry for Reddit link: https://www.reddit.com/r/Piracy/wiki/guides/private_trackers/#wiki_.25BA_what_is_a_private_tracker.3F
A Reddit link was detected in your comment. Here are links to the same location on alternative frontends that protect your privacy.