Before I became a good Physical Therapist, I had to become a Physical Therapist. Before I could become a PT, I had to graduate with a degree in PT. Before I could apply to PT school, I had to have experience working in the field as an aide. Before I could be hired as an aide, I had to have experience working.....as an aide. You have to start somewhere, and yes, you're going to make mistakes, perhaps substantial ones, when you first start off. But the lack of experience will limit much of your initial progress.
But success comes not simply from experience, but from being able to navigate the bureaucratic tsunami, imposed by governments, at all levels, and still make a profit