Also go to learn from courses
PPC course will help you to understand fast forward ( you will be commit to that cause you start earn money)
Check CPL method also
Amazon authority site and affiliate site will also give you big breakthrough what it's going on and what not
There are various SEO tools which are important for SEO such as Google Analytics, Google Keyword Planner, Google Webmaster tool etc. And for site, you can try udemy courses or youtube videos.