I play chess to de-stress on lichess at a 2200-2300 level. I would highly recommend the site as its completely free, there are no ads and it has a very clean interface.
I previously played on ICC up to a 2500 blitz level with a win over World Champion Magnus Carlsen and a few over American #1 Hikaru Nakamura. Full disclosure – Magnus beat me in the other few games we played and Naka has beaten me maybe 50 times. They are much, much better than I am.
I was president and #1 player for Birmingham University during my time there as well as being my county champion at the youth levels.