I don’t know how general this is, but I think that the online probabilistic forecasting community is joinable, and has affordances to improve (e.g. gather relevant data and make a linear model, make 50 predictions about your personal life and see how calibrated you are). Relevant websites include Metaculus, Foretold, and the Good Judgement Project. That being said, after a certain point I think this has limited practical benefits.
I don’t know how general this is, but I think that the online probabilistic forecasting community is joinable, and has affordances to improve (e.g. gather relevant data and make a linear model, make 50 predictions about your personal life and see how calibrated you are). Relevant websites include Metaculus, Foretold, and the Good Judgement Project. That being said, after a certain point I think this has limited practical benefits.