I would recommend reading through the pattern to see if it looks doable to you. At the very least, you will need to know how to knit, purl, make increases and decreases, how to cast on mid-row, and how to change colors in the round.
I do recommend this video for jogless stripes. And if you need help with any of the increases or decreases, you can check out KH's glossary which includes lots of really helpful videos.
Otherwise, yeah, what GG said!