It's weird but I became happier after I realised how much I needed to be content with myself, regardless of a relationship. When I started dating again few months back, I realised I needed space and independence to actually build myself and evolve into who I wanted to be, and a relationship was not really the answer to my depression- it was dragging me down.
I cut ties, started learning things, especially how to be content with myself, who I am and what I look like (i'm skinny).