@Mountaindewed -- are you looking at /r/coronavirus, /r/chinaflu, or /r/COVID19? Those subs can definitely trigger some people, as can /r/worldnews and /r/news.

If you don't know how unsubscribe to a sub or remove those subs from your home feed, go here and look at the righthand side: subreddits.

I have unsubscribed from various subs because they either piss me off (so I guess they're triggering?) or I find them annoying because they make me anxious.

While you're at it, maybe find some funny subs to join, like /r/funny, /r/jokes, /r/amitheasshole, /r/TIFU, etc.. I'm also a huge fan of /r/InterestingAsF_ck and /r/MildlyInteresting. (Just replace the underscore '_' with u.)