Can someone help me figure out how to make my site more responsive?

PM me, i'll send you link.

Using media queries. Theres lots of guides online.

Biggest advice i can give. Sketch out 3 layouts, mobile, tablet, desktop.

When you're building, start with your mobile first and then scale upwards. You will find it much more difficult going from desktop to mobile if you're just starting out

i'll try that! thanks!