Has This Ever Happened to Anyone Else?

I came up with a deck idea, that being [[Kokusho]] Life Drain. I begin looking through Magiccards.info for cards, writing down cards I'm considering, it was going well. Then I just....stopped midway through and scrapped the whole idea.

This has happened several times to me. I've tried to make [[Rosheen Meanderer]] Hydra Tribal, [[Intet, the Dreamer]] Dragon Tribal/Top Deck Matters, [[Dragonlord Ojutai]] Voltron, and several other decks that I can't remember. I've only succeeded in making the Ojutai deck on Tappedout, which I'm looking to make IRL. But I want to make more decks. I don't want just two decks. I want to make stuff like Kokusho Life Drain. Anyone else have this problem, or know how to help?