Gewesen / Been Schon seit / Since Schreiben / Writing
I've been writing full-time since 1978.
I've been working since I was five!
Writing bores me so.
I've been tired since I was 15.
I have been working since I was 14, nonstop.
I've been 6 ft. 2 ins. since I was 13.
To do the writing, I have to have time to do research.
Writing is inherently scary.
Being a writer is not the point. Writing is.