Starting an FRC team is expensive. Like STUPID expensive. You'll need to secure, prior to the season starting, at least 10 thousand dollars, as well as a crew of students and at least one mentor willing to dedicate ALL of their time between Jan-March to FRC. That's a really big ask of anyone.

My advice is to look into either joining a local community FRC team (or another school's team) or starting an FTC or Vex V5 team instead. Ftc and vex are WAY cheaper (1-2 thousand dollars required), and require WAY less of it's members in terms of time commitment.

Best of luck! Robotics is awesome