I'm looking for a four leaf clover...

My backyard = 99% weed / 1 % grass

I need a lawnmower and some weed 'n feed, this much I know. I just don't have the $ or time to take care of this situation. There are dandilions out back 18 inchs in diameter, clover, clover, crab grass, things I can't identify that are taller than Justin. Yikes!