direct response - copy that matters

Hey, So I've been learning copywriting for 6 months now and I feel that I have a good grasp on the basics (Structure/Intimacy/Urgency...) after I finished the AWAI accelerated course. But now I don't know what to do:

How to get clients? How do I know if I'm even good enough to start searching for clients? Should I cold mail? Can I do more than one type of copy like email marketing and sales pages at the same time?... Which type of copy is the most profitable?

Basically what is the best way to earn as much money as possible in as little time as possible

If you've been there I'd really appreciate some advice or even your past experience Thnx in advance