As a meditation teacher and artist, I'm involved in several
projects. My strategy is to meditate in between projects.
When you meditate, your mind rests from conceptual thinking. In that moment goals don't matter, you find peace and happiness in the present.
After your meditation, focus on the project you feel more excited about. When you finish it or when you feel you can't do anymore of that, allow yourself to go into Savasana posture, that is laying on your back with your arms to the sides and a little pillow on your head, you can also adopt the traditional sitting posture. Then do a Mindfulness of Breathing Meditation, 24 min is good, but it can be shorter, longer would be excellent.
After your session, repeat the process. Try to mantain a continuity on your mindfulness so you can enter easily into a state of flow in your next activity.