How to update my career as experience is going up

Question

For Last 8 years I am writing, coding using c# with .NET Technologies like asp.net web form, asp.net mvc, web api, SQL server (Table Creation, Stored procedure, joins, index, view so on) and also worked other technologies like angular as fullstack developer but as my experiencing going up what should learn Mostly I have worked small base companies, my question what should I have to focus to my career growth to learn new things as experience going up.