Ditto to the 2 comments above.
I’m learning by reading this forum that the path of the instrumentalist and vocalist are different. My daughter started much later. You can’t really start voice lessons until 14+ My daughter started with a good voice teacher in her sophomore year. But it wasn’t uncommon to see people entering as Juniors however all were singing in choirs and musical theater for a few years. My daughter did NO summer programs ever besides All State Choir. She never met any teachers at colleges prior to auditions. She did however work with a very good voice teacher who guided her. She was at a music school and I knew other vocalists. Her situation was the norm. Many of the students including my daughter got into good college programs.
So look for the best voice teacher you can find. A teacher who has worked with students who have gone off to college for voice. They won’t mind you asking. And then take a sample lesson or two (which you will pay for) and see if you feel good about it. You’ll know the right teacher when you find him/her.