There are countless things that can help you cope, as you get better, but in the long run, nothing is better than exercise to negate feeling lousy.
We fall deep into depression, it takes a lot of time and effort to climb out. Things in this life out of our control will always test our ability to deal with emotion, constantly. But in the end, if your physical self isn’t being taken care of, and that includes proper sleep, nutrition and exercise, you’re not giving your mental well being all it needs to be it’s healthiest as well.
That, and learning to generally make better choices in life, go a long way.