Start Statquest on YT . Watch every single playlist. Sorts out 60 pct of work. Code everything from scratch in python , another 20 pct , then create a great project in a domain you love with complete ML lifecycle (Data Gathering, Cleaning , Transformation, Training, Validation, Deployment) another 10 pct. Continue learning about the latest developments and trying out new things , the thing to understand is you will never be able to complete the last 10 pct because how fast things are changing, just adapt and keep on improving.