That's what I was getting at with my question. I don't mean to sound discouraging here but high school is when kids start quitting sports. Why? Because they can no longer hit a fast ball. Because they got outgrown by a 230 pound 4.4-forty linebacker. Because they can't or don't want to practice after school for no playing time. I've coached football, baseball, softball, and basketball from t-ball to high school football and baseball in my state's most competitive region. Well, probably tied for most competitive. Coaches know who the players are before tryouts even start. They know who is coming back and know who is coming up. In my area, coaches get pleasantly surprised occasionally when a military kid transfers in and makes an impact. Look up Sunshine Remember the Titans.
All is not lost however. It was recommended above to play something you can letter in. Football and probably lacrosse don't do cuts. They need practice players so you can make the team and letter if you stick it out all season. Lots of coaches though require a certain amount of playing time on the varsity to get that letter. Maybe you're exceptionally athletic and a quick learner and will surprise everybody.
It was recommended above to wrestle. That's the toughest sport in high school. It may be your thing. One of my female students made states this year. She rassled boys during the season but competed with girls at the state tournament. She's also a cheerleader which you can also letter in. Can you run? Do track or cross country. I know a USNA grad who got in because she's a genius plus she was a cross country athlete. If you've never played baseball then it's too late to start in high school. Years ago my son had just made varsity baseball as a freshman and the coach let a 4.3 running back join the team with the thought of him being a pinch runner. He had just signed a NLI with Coach Bobby Bowden at Florida State. Everybody told the kid he was crazy to risk injury in a sport he hadn't played since he was a 10 year old. He was a fish out of water. He was an elite running back, one of the best in the country, and didn't know the first thing about running bases. He didn't last a week on the baseball team.
Unless you're a phenom, basketball is out of the question. Kids are making travel squads and getting private coaching as young as seven in soccer, baseball, et al. (My two grandsons). Starting sports in high school isn't impossible but not typical. I suppose there's something for you but it might also depend on the school size and competitiveness of the area, district, region. I wish you luck.