Because it used to be very important part of me, my biggest hobby, biggest passion, and it's over. And I feel like I've been practicing this skill my whole life

Because it used to be very important part of me, my biggest hobby, biggest passion, and it's over. And I feel like I've been practicing this skill my whole life to get to where I am, and now I find it very difficult to switch to new field. I'd rather be passionate and use my skills to build something meaningful.