Start first with BW, master it and later try C-41.
C-41 has nothing difficult, but one thing after the other, start with BW because processing temperature is usually 20ºC.
Buy a (used) copy of "The Darkroom Cookbook" read it as many time is necessary to understand it well. For advanced learning buy "Way Beyond Monochrome" and "Beyond the Zone System" and "The Film Development Cookbook". If you are to print with enlargers also read a basic book and later "Post Exposure"
http://ctein.com/PostExposure2ndIllustrated.pdf
In practice, many videos:
https://www.youtube.com/results?search_query=film+development
I'd advice to use a cheap HEPA air purifier (I use honeywell hap-16200e) to get rid of dust while drying or handling film.
Make final rinse with some distilled water, in that way you'll avoid drying marks from salts in tap water.
Suggestion:
Sacrifice a cheap expired film roll and practice lights open and in darkness the spiral loading.
Post here, one by one all the steps you are to do, as much detailed as you can, and many will tell you is something is wrong.