You may have made several mistakes.

First is 2 months is too long to work on a game. 2-3 weeks max. Make game -> release -> make new game. Keep them coming. Rovio made 50+. If they'd spent 3 months on each, they'd have drowned.

That problem I think also leads to the rest. Most of which has been said. Once I made my first app which took me ~1 month, I've pushed times to 1 week. Keep them coming.

Another issue is salivating at the money before you create the user-base. Get the users up first. The money follows them.