I think it's great that you came into fandom wanting to fill in a void! "Maybe me?" is the best approach to content creation imo and I feel like fandom sometimes forgets that you have to start somewhere with these niche pairings!

One of the best things about fandom is people's generosity and the connections you make with people you otherwise would never meet for any other reason. (And getting to find those people again! It's honestly crazy to go "Hey, I know you!" after so long.) I think a lot of people would be understanding of interests waxing and waning tbh. There are fandoms that I absolutely love, but sometimes you need to wander away for a little while to come back feeling fully refreshed and into it.