I’m not advocating for people who are currently taking anti-depressants to drop their pills tomorrow.
The studies (I’m on the train so I’m not trying to cite these sources, google it) show that lifestyle changes with antidepressants is much more effective than antidepressants alone.
Even if you have a non-self-inflicted chemical imbalance, your shrink is likely to prescribe all of the things I listed.
Source: my shrink, and every shrink worth their salt.