Mamelouk,
I have the bad habit of trying to focus on too many things at one time. However, I've learned to prioritize tasks on my 'to do' list by impact. I find that some tasks must be completed before others. Additionally, I find that some tasks may not help me progress in the achievement of goals, so I cross those off the list.
I've learned by focusing on one task at a time and completing that tasks, I feel a sense of progress that I use as motivation to continue forward.
Good luck in determining your goal priorities.
Kim
personal growth and inspiration
dishing 'common sense' and 'practical experience' for personal growth.