I think this is relevant to self-improvement project as I very, very often see Stoic thought appropriated in the wellness culture. Stripped from it’s deep self-reflection, reduced to pithy motivationals.

Stoicism is great, and approachable if one wants to live an examined life - as I hope people would if they’re interested in wellness. But it takes a a deeper dive than just watching some gymbro quote the greeks without reflection.

The Waking Up app features a couple of modern Stoic practitioners that may be of interest. Personally I prefer more Buddhist approach though.