Pick one thing?

I’m struggling with the idea of picking one thing and constraining my focus.
I had set myself 3 big goals for 2018, and now I’m wondering if I need to just pick one. (All three scare me but I feel very committed to them all. But I am having trouble believing that I can accomplish all 3. It’s hard to unpack whether that’s because I just need to do more thought work or because it’s really too ambitious.)

1. Make $100K as a freelance writer.
2. Complete a draft of my new novel.
3. Get a publishing deal for my first novel.

These are all related to different facets of my career and I have a compelling reason for each of them. Do I still need to just pick one thing?