So, so accurate. Gosh, they even medicate in the hopes to getting out of the depression, but end up back at square one coming off them or permanently on them.
These things are managed, not cured. Life is such that you'll always get new things thrown at you, even if you've gotten a better handle on past things. Then there are those times when you think you've gotten your past behind you and it creeps up to bite you in the ass and you have to go through it all again. Not that these things don't need going through again, sometimes, particularly when you realise you've just buried them and not worked through them.
Yeah, we do that a lot, especially when we're still in the bad situation (like, not processing abuse while we're still in an abusive relationship).