Wekan for personal life

Hi Wekan fans, I am a new guy and considering switching to this as a main task management system. If you already use Wekan this way, I wonder what your setup is like?

Having played around with Wekan for one day, these questions came up (see context section below this section):

1. What is the difference between labels, lists, swimlanes and boards? It sounds obvious but I'm curious in what way you use them.
2. Why do swimlanes automatically have the same lists? Can't they be different?
3. Checklists vs subtasks? Subtasks seems to automatically create a new board with new cards. I don't know how I feel about that.
4. There doesn't seem to be a priority field or a way to sort tasks yet?

For context:

1. I'm thinking of having one board for GTD (Getting Things Done), this will have link cards from other boards that relate to other areas of my life (Reading, House, Work, Exercise).
2. If it didn't work this way, I probably would've only created one board with different swimlanes. The swimlanes themselves would be the different areas of my life.

For sure, I know there is not 100% right or wrong answers to these. But if I can model someone who is already having success with it, that would be awesome. I can speed up the process of becoming more organised.

Note: I still haven't explored the Calendar/Templates, maybe I will check them out and come back with more questions later.