Hi! The best way to get your grade up is to study online, in books, and do extra credit. I can always help as well! But, you should definitely resort to studying online and in books, and mostly ask your teacher for help.
there's one simple way to bring your grade up first internet search up what you're learning study do some extra-credit maybe it will raise your grade if it has worked for me in the past and I and I know it works for many people that I know in the past and don't forget to study more study study study study study study study that's good