How do I check my overall skills?

Hi ToxicPiggy (BTW you have a cool username)!

I might be mistaken, but you could check your progress by going to the left navigation bar and clicking Progress. 

Here's an article that explains it: https://khanacademy.zendesk.com/hc/en-us/articles/360032987591

My apologies if this doesn't answer your question.

All the best!