Can't get my custom font I made to work for gallery titles or shop item titles.

Hello!  So I have a font that I made on my own that I want to integrate to my website.  I've managed to go into the CSS and make it so almost everything uses the font.  However, I can't seem to figure out why the font won't apply to my gallery titles or my shop item names (attached below where it says "music, books, comics, event posters, etc.").  I'm currently using a font that is similar to mine but ideally I'd like everything on my site to be my font.

Side note, I am not very familiar with coding as I've just been copy/pasting codes I've found online but I will do my best to comprehend!

Hey

I guess you used incorrect class name.

Can you share link to your site? Difficult to help without site url.