Hi momo, welcome to APUG. You have reached the right place for encouragement and information for starting to do your own processing and printing.

For C41 processing, although I think there may be some formulae around online, you would probably be better off with a kit. These are pretty easy to get hold of from the likes of Silverprint, Firstcall, etc. These are usually two or three bath formulations, and aside from needing to be a little careful about temperature control for the developer are very easy to use.