I want to make the size of the font bigger, but I don't know what to use.

Things I've tried: [*size] [*fontsize] [*font]

to make the font overall bigger, try adding this code on this page, and you need the "profile" widget on your profile to start adding code.

<style>body {font-size: 16px;}</style>

What about making only certain words different sizes?

it depends on where those words are. If its something you wrote in a blank section, then this should work

blah blah

That worked! Thanks so much :)