Genre fiction, as Terry Pratchett has pointed out, is a stew. You take stuff out of the pot, you put stuff back. The stew bubbles on.
As we age, we become our parents; live long enough and we see faces repeat in time.
As far as I'm concerned, the entire reason for becoming a writer is not having to get up in the morning.
Take what you have learned, and move on.
It begins, as most things begin, with a song.
The lower you start, the more opportunities you have.