Alot of the above are good ideas along with cold water therapy. I study neuroscience and the impact this has on your dopamine levels, your ability to cope with stress and your overall health and immunity is incredible.

Don't get intimidated by all the hard-core people jumping in ice covered lakes. Start small, with cold showers or a bath filled with coldest tap water. The idea is to create an environment that is mentally and physically stressful/hard for YOU. There are many studies showing the temperature of the water really doesn't have to be that extreme.

Google Wim Hof for popular resources.

Proud of you for seeking healthier coping mechanisms!