How and when should a jungler gank?
Alright. I've been learning the process of jungling really well, I've figured out my pathing, where to go on what monster to kill etc. However I been having a problem while playing after having 7 lost ranked in a row. Seeing how horrid my kda is and how badly my teammates play. A part of me has a bit of to blame and everyone tells me that I need to gank only one certain lane. Weither it be mid top or bot, It's so confusing and it get's frustrating when all of the lanes are in trouble so Here I am hoping for tips from a professional jungler.
What Is the most important lane you need to gank and usually when is the absolute best time to when playing?
P.S. I usually main my boy skarner, so tips mostly focused around him would be nice
Also what other champion jungler would work great with the runes that I got for skarner?