Want to know about Full stack development

I am a wordpress learner. I have completed my basic wordpress courses. Now I want to learn Full Stack Development using WordPress. For this what I have to do, what programming knowledge I required and which online course will be best please instruct me. I also want to work on live projects.
My Whatsapp number: 7002345741
If required I am ready to pay

WordPress provides common security. There are many times create a problem.

Please start with HTML, CSS, Javascript, Jquery, angular, react for front end.