May I suggest (really consider taking up this suggestion!) you invest in some F-series parts to play with. They can be erased and reprogrammed 100,000 times or more.

With a C-series part, it's a one-time only event. You make a mistake and it's land-fill. Unless of course you actually WANT a heap of PICs that will only ever blink a LED between now and doomsday and can't do anything else...

Once you've got a working design - and you never, EVER want to make a change to the program, C-series parts are there because they're cheap. But you NEVER use them if you're learning or playing... (unless of course you happen to own the factory and you don't mind bucketloads of waste)...