Everyone has different abilities when it comes to food plots. Some plant small and some plant big plots. All depends what you have to work with for tools and the time. Got to start somewhere.
There is alot of good info on the forums and great people to get you started.
If you are interested, check out the Antler King mega food plot starter pack. 20$ and comes with small seed packs, a Ph soil test, how to DVD, and some spray products.
Good luck with whatever you end up trying.