Hi everyone! What is the best way to develop a web appliaction?

I’m not an expert in this field. My knowlwdge is not enough to be a professional web developer. I’m looking for a career in softwate development side.
My question is what is the best way to develop a web application. Because there are many ways I found. You can use PHP code, or ASP.net ..etc…
Among these technologies what is the best technology I should improve?