Throw your money at trading cards on the community market and make badges. Money wasted. Congratulations, now regret this life choice.

BUT DON'T WORRY! Atleast you can have another friend or 3 added to the max amount of friends you can have since there's a limit to it, aswell as you obtaining some neat wallpapers and emotes which are probably gonna catch dust in your collection at some point

I got 11 years of experience on Steam, and I got this account to level 86. So yea, I've been through the process of wasting money on making badges myself. You're welcome.