These are very different activities. Track is a large team, but the events are individual. There is definitely technique in both. Lacrosse is a team sport. A track meet can take several hours, a lacrosse game take about 1.5 hours.
Do lacrosse, my brother and I both quit competitive soccer when or dad was the coach after one practice. Also has a great culture to it, where track doesn't.
I would do lacrosse because it's on teen wolf and teen wolf is the best show. Watch it.
It depends on what u like better. I really hate track because the meets last for hours and you might be pared with people you don't like. Like I said its depends on what u like. If u like to run ect....