At my school, I never had a class president. We just didn’t do that
But.. I can tell you this
Join student council and other clubs, get good grades, and be friendly and authentic. Create a slogan and campaign materials, and talk to everyone about your campaign. Spread your campaign message, and soon you will have the most votes!
Most importantly, make friends, make connections, and don’t be a bully,
bullies do not win!