You should not jump right away into deep waters of coding (and creating backend for mmorpg is really really deep water).
However you have experience as community manager, and probably some in marketing (or have contacts with people that know it). So instead of going into databases, unreal C++ lyra etc. You should focus on getting some funds then hiring/getting backend (database) + unreal coder. And then you can do some simpler coding tasks in your game.
As indie dev you should optimize what you can do. Build strong team instead. And i already see you got niche market that is not so niche and actually may make profits from game.