I'm sorry you had a bad experience. Crowded trails can be frightening and frustrating. I'd suggest going slowly, using a mirror, hi viz clothing, a bell, and a really loud voice.

A few positives to focus on:
It does give you an opportunity to promote good cycling manners -- stopping for pedestrians, for example. You can also thank people who move for you. And you will develop bike-handling skills if you are in crowds at times.