Is it worth taking a "gap" year to boost my chances at college?

Hi everyone this is the OP, I had to make a new account because I forgot this password/username but I got them back now!

Anyways, I get that people are trying to tell me to apply before high school and then take a gap year, but would it hurt my chances to apply during the gap year?

If what Stanford16grad was true about how colleges like seeing more maturity, then does that mean that the admission officers would take that into account and it would be an advantage for me if I were to apply during that gap year?

My plan was to apply normally, don’t get senioritis while waiting for colleges to respond to my application and increase grades, and then see where I end up. If I don’t like my options, then I will reapply during my gap year. If I do like my options and decide on attending one of those colleges, I still might do the gap year and defer my acceptance for figure skating depending on the college (proximity to rink and coach). Is that reasonable:?