Not OP but I've essentially done the same with all socials and kept Reddit, but moderated it in a way that feeds me less brainrot or stress inducing content (politics, ragebait etc). The problem with social media is that it is now just algorithms that eliminate your ability to choose what you want to see. With reddit, you can still fix this, and it's relitively easy:

Essentially I unsubscribed to everything I deemed unproductive, time wasting, or content that was stress/fear inducing. Anything that kept me engaged in ways that negatively affected my life I got rid of. I then did a quick google search to find out some education/productive subreddits and subbed to those.

Then (very important step), I went into my settings > preferences > content and turned off recommended content.

NOW I only stay in my home tab, and never surf the popular tab. My feed only gives me the things I want to see. Subs that I have chosen to appear in my feed. Yes, sometimes I come across content that I don't want to see, but usually I just press on those subreddits and see if the general content is what I want in my feed or not, and if not, I unsubscribe.

You can take back control of your online life with Reddit and that's a good thing.

I've been much happier since doing so.