How do I add a page?

Login into your admin dashboard > Pages > Add New ?

Go to you admin panel Pages > Add New
See screenshot on [Changed by moderator] https://snag.gy/irCF1.jpg

[Moderator note: In future please use a cleaner image sharing service like Snag.gy]

I got that. But clicking “publish” doesn’t make the page show up on my site.

Will you please share your website link?

This is the link to the page I’m trying to create: https://www.jlakoda.com/my-music-2/

I can’t figure out how to make there be a tab to link to that page though.

I don’t know what happened, but now it’s working.

Just go to Dashboard > Appearance > Menus.
Check this screen shot https://snag.gy/qlY86.jpg