Hello Treasure, neither does your reputation count, nor how long you've been on ShareYourself determines your wining.
What matters the most is having the following;
1. A compelling project that is practicable and aims to solve or already solving a local problem.
2. Completing all grant requirements (this you can find on the grant page).
3. Being committed to your project on ShareYourself.
Once you have all three up and running, I bet you're already a stellar project creator and potential winner. Good luck.