If voting ever made a difference they’d make it illegal. Why it never made a difference in the first place is that it’s a function taking place inside the same system. It’s like you are choosing a captain for your football team when what you should be doing is choosing to play basketball instead. Choosing between Coke and Pepsi when you should be choosing water.
The most important thing to learn is how to vote with your energies. And you vote every day. On all levels of your being. With your time. Your money. Your attention. Your labor. Your mantras. Your environment. Where there is demand, there will be supply.