My mother died before I could come out

I was on the verge of coming out to my mother five years ago, when she died suddenly. I feel like it has trapped me, that I can't move forward now, because I never got that affirmation from her.I'm now a 25 year old who hasn't dated or had any significant relationships at all, and this is the issue I keep coming back to. Now I'm so deeply self-isolated that I don't know how to break the cycle.I don't know what to do, but I know this can't continue forever.