Thanks you for your comment @kiddady!
Yes, you're right, people should focus on their strengths and not on their weaknesses, if that's what you meant! Multi-tasking is an illusion and meditation helps a lot in a.) focussing on what's really important and b.) getting in touch with your higher self that guides you and helps you intuitively to choose the right paths.
But you should also acknowledge, that there are also so called scanner personalities, multi-interested people who are not able to dive deep into only one subject. It's their personality to have multiple interests, talents, ideas and project they need to go after, otherwise they wouldn't be satisfied!