How do I find a mentor that has lots of experience doing this stuff?
Online and also in person.

Somebody who knows what they are doing for a long time now.
It depends if you know someone who is willing to spend time teaching you about the basics of trading. As for me, we could still learn a lot about trading online through reading and watching useful videos. It is just for you to look for tools that could help you gain more knowledge.
Developing our own knowledge with trading isn't easy when you don't have the proper tools needed, in order to acquire skills that's very important when you're at the current activities involved. If there's somebody who wanted to spend a lot of time, I guess it can be your best friend who also knew trading, but it's hard to find it because the number of people knowledgeable about trading was only selected. Probably we can seek help from online research and from social media chat groups who happen to learn trading basics by group ideas, sharing through person to person communication.