Ideas and their execution matters more. You should start learning Adobe Illustrator.
Sketch your idea first
It should fit a specific shape
Let’s say circle, rectangle, diamond, horizontal or vertical. For example I made a logo that can fit a square -> It’s balanced.
Something eye-friendly
Find some inspirations
Other links
Youtube
https://www.youtube.com/watch?v=lWNSmKrvIqg
Behance