Trouble Making a header that fits?

Hey there cakes! Are you having trouble making a header that fits? well you have come to the right spot! Ok. here are the instructions... BTW, i dunno how to do a header with wordpress, so if you are from wordpress, u might wanna... GO AWAY! jk jk! sorry idk.

1. Go to your blog.
2. click design
3. Click the orange button that reads "customise"
4. Click adjust widths. (we are not doing anything here. Just looking at the measurements.)
Ok my blog is 860px x 260px.

5. go to www.picmonkey.com
6. click on "edit a photo"
7. choose a photo
8. Click on resize
9. then uncheck the "keep proportions" button
10. type in the measurements of your blog. In my situation its 860 and 260.
11. Click apply!
12. edit you banner however you want!
13. now you are done that, heres how you but it on you blog!
14. Now go back to your blog, and hopefully you are still on the "adjust width" page
15. click on Layout
16. Now click on the "edit button" on the bottom right hand corner of "Header"
17. Click on "instead of Title and description"
18. Insert your header image
19. Click on save
20. Then go to advanced and change the lettering
21. In the top right hand corner click on "apply to blog"
22. WA LA! you done now go check out your bloggy blog blog!

THE END...