My avatar is done but it wont let me use it... How can i fix it/can you fix it. I have Photoshop but am not very good with it.
Here it is:

The file size is too large (33.36 KB), that's why the forum isn't allowing you to use it as your avatar. Avatars must be no larger than 25 KB. [This tutorial] has a section about resizing in Photoshop, so you should read through that if you want to learn how to resize images.

Using GIMP, I resized it down to 9.04 KB:

If you save that image to your computer and try again to upload it as your avatar, it should work fine for you.