Suck it Up, Buttercup
I'm not a big fan of sucking it up or putting on a brave face. It's both exhausting, and in the long run, ineffective. Eventually, the house of cards tumbles down and you have to face the reality of the situation you have been trying to suck up.
Over time, we can lose touch with our feelings and even forget what we need to make us happy. We think we should be happy with our jobs (that we really hate), be able to put up with a difficult person (just because they treat everyone terribly and it's not personal), and be content with a long commute (because everyone else seems to be able to do it), etc.
I don't really care if other people would be happy in your shoes. All I care about is whether you are happy in your shoes.
In this sense, depression and anxiety can be a gift that strips away your brave face and forces you to do something about a situation that doesn't suit you.
So, stop sucking up those feelings and really listen to what they are telling you. They may be difficult and unpleasant but in the long run, if you listen carefully to what is right for you, they will lead you to happiness.