Hello, i'm new!

Hello, My name is Grace and I am starting on my new FIM fanfiction account. So first topic, my profile picture, well because my pc does not have paint I had to use Pony Creator (link http://generalzoi.deviantart.com/art/Pony-Creator-Full-Version-254295904) but I'm not fond of it so I was not as happy . Anyways, I am so excited to start making fanfics but, I'm having a bit of trouble thinking on one. Thanks for reading!