According to one study, if you're 50/50 on quitting, you'll end up significantly happier if you quit: https://www.gwern.net/docs/psychology/2020-levitt.pdf http

According to one study, if you're 50/50 on quitting, you'll end up significantly happier if you quit: https://www.gwern.net/docs/psychology/2020-levitt.pdf https://www.gwern.net/docs/psychology/2020-levitt.pdf (p18, Table 5). Research on psychology (loss aversion) suggests the same thing, AFAICT.