I think it is hard for MT high-schoolers who tend to be superfans of the genre to narrow down their type. My boys loved to sing anything and everything but it took them a while to realize what pieces were really suited to them. Just because they “could” sing it, didn’t mean they “should” sing it. A specific example: One of my boys loved singing “I’m Alive” from N2N (Aaron Tveit), but was told by a trusted advisor that while he sang it beautifully, unless he hit the gym and put on some shoulders and arms, it might not be the best song for him at that time (as a lean 18-year old boy). (Interestingly, since then, he’s done just that…and might perhaps get different feedback today.) This is another reason why third-party feedback is helpful – even if you don’t use a coach, it is good to run your material with trusted teachers, professionals and advisors familiar with acting/MT who can give you honest feedback on your song and monologue choices.