I taught choral music in NY state schools for over 30 years. So did my husband - and we retired a few years ago, but our adult son and his wife are both choral directors, too. It's a SCHOOL - not the Metropolitan Opera - it is our job to TEACH you what you need to know and do, to be a good choral singer. This is not the same as vocal LESSONS designed to make you a soloist - but your teacher will do what we did. You will learn how to read music (they might teach you by rote at first, so you can get some SINGING going) - how to breathe most efficiently for singing, how to produce a good, clear, in-tune, pleasant tone, how to articulate your words for singing, how to BLEND with others - and more.
I taught in a small city, upstate. I would ask the guidance counselors if there were *loner* kids that had a study hall while I taught chorus. I would chase down those kids, and tell them I would like them to join chorus, and that they had the potential to make a contribution. They would all say "But I cannot sing! You never head me sing!" - and I woudl tell them that it was my JOB to teach them how. Did all of them stick with it? No - that would be unrealistic. But of the many who did, they often went on to feel that YES - somebody had finally included them in *something* in school. I told them that if someone got pushy and said "So sing a solo right now!" that they could say that they were CHORAL singers - like being a top defensive player on the basketball team, their skill was supporting the GROUP, not being some gunner 3-pointer. The chorus grew - we did fund raisers and many kids got to see a Broadway show and Yankees games for FREE that way - several enough would raise enough to treat their Mom as a Mother's Day gift ( I cannot make up this stuff . . .). Realistically, few majored in music - but many prospered by using their new confidence. I am proud of ALL of them.
So go sign up for chorus. Nobody expects you to go from there to America's Got Talent or The Voice. But you will be part of a good team, that will make music - and pride - not just for you, but for your school and community.