Would you like to help me out?

I'm not very smart when it comes to computers and stuff,so I need some help

Can anyone help me? I want to make a banner for one of my stories! Nothing flashy or anything, just a picture with a few word on it. And also how do I add it to my story.

And this had to be 100 words so...........

Hi, how are you?
I have a secret to tell you.. :O

I ..
really...really...
like you!!! Do you like me? OH MY GOSH REALLY....no, wait. Why did you LIE!?!?!?!?!?!

haha Please please help me, Thanks a bunch!!