My T's not a tool giver. Because she knows they're rubbish. Only keep going and working through the bomb site that was my internal life is the only option. Yes I still get depressed. But it's manageable. I accept it and use it now to look inside.
Google tools for depression if you must. They're are there. But use therapy for talking about how you feel. That's the best tool there is.
Depression doesn't scare nor stop me now.