Learn how to speak and write.....
it sounds simple but if you cannot do the 2 things above, you'll be behind the eight ball in the business world. Speaking is not just being able to speak in front of a crowded boardroom, it is knowing what to say and how to say it. I had a manager early in my career write this on the whiteboard when I was giving a long winded response SUCCINCT.
Speak clearly and succinctly helps get your point across and not lose the audiences attention.
Writing, well that's pretty simple.....
One final thought, taking on assignments you do not like is a way to move forward. The more work you take on without complaint, the easier it is for you to request the pay raise, promotion, or move up.