Here’s a few links that may help lovely. The rune course mentioned by @Amethyst is a great place to start.
Master PostI’ve put alot of posts about runes so it depends how deep you want to go. They do more than divination, they are an energy system that works like reiki. Any questions just ask, but for a first step learn them like you would your ABC, so know their names and order by heart, then learn their divination meanings. Once you got that, the skies the limit with these things 
It never ends lovely. I’d say a year to really get the foundation solid but there’s always more to learn. My rune tutor said, the more you use them, the runes actually teach you directly and you just start to absorb them into your Psyche. So don’t put a timescale on yourself, just enjoy them and you’ll find one day, it’ll click.