Have you considered transferring to a different team with a different project in the same company? Generally this is much easier than moving to a new company, y

Have you considered transferring to a different team with a different project in the same company? Generally this is much easier than moving to a new company, you get to keep any accrued benefits of tenure, and in a big tech company the culture of different projects can be so vastly different that a change like that can feel pretty much like you're working at a new company. Also - don't worry about failing interviews. Having done hundreds on the other side, and seeing many good candidates be rejected, it's clear the game is stacked against the candidates, erring on the side of caution (no hire), knowing we'd miss out on many. And finally, if you are depressed, do seek help - others on this thread point to great resources. Use them.