This feels only the level of suggesting a person can choose to not be depressed by thinking positive thoughts. Mental issues are 'just choices', yet we aren't

This feels only the level of suggesting a person can choose to not be depressed by thinking positive thoughts. Mental issues are 'just choices', yet we aren't sure that free will even exists or if choices can be made. Research on the brain shows it isn't nearly as simple as just choosing to be better. Brain does a great job of tricking us into thinking we have control.