Ive deleted my header, how do I load a new one, I cant find anything online. Thanks.
What do you mean you've "deleted my header"? You can't delete a header.
Either you've shrunk it (in which case you can use the layers tool to get it and resize it), or you've hidden it from your page. https://support.wix.com/en/article/hiding-the-header-and-footer-on-a-specific-page
Btw, you should really read this article as well, especially the part about titles. -#cleaninguptheforum
Thanks so much, appreciated.