Dont worry!!! Everyone needs help once in a while!!! Yw sweetie!!!
i dunno which you were trying to change but i hope these instructions help either way!!!
if you’re trying to change the hover font, go to settings> edit appearance> click on your font and there will be a bar that pops up that lets you edit the font type and the color!!
and on your blog just go to your blog> customize theme> and on the left there will be a long bar and you just go straight to it