One thing at a time.
Focus on one thing. One thing only. Keep working on it until it starts taking shape and it's done.
When we keep switching tasks without getting them done, we don't make progress in any.
This is true for projects as well. Once we commit to a project, we need to give it time for it to take shape and become tangible.
There is a time for thrashing around and figuring out what to work on and there is a time for commitment. It's helpful to not confuse the two.