What’s the point of fighting my depression with therapy, DBT, and medication when it still can get me on my low?

At this moment, I want to shoot myself because I’m tired of being alone. I will probably kill myself once I graduate college and move on from my friends to “find new people.”

I know Im sure won’t be able to find a new relationship. All my hobbies either feel like a chore or I just end up hating myself even more because it’s not as good as it was. Im about ready to just kill myself.