Writers Block......DAMN YOU!!!

Blast you Celestia, so I finally got my first fan fiction off the ground but now I am set with a new problem writers block. Ugh I have ideas in my head but nothing seems to stick but hopefully something will and I can build off it. At the same time though new ideas for fan fiction so I am at an impasse do I write these new ideas or do I continue with the one that I have now? Maybe ill flip a coin before this gets out of hand...I mean hoof.