Well old lady coming in to post some life advice.
Separate the idea of a date and the concept of dating someone. It's good to learn how to go out to dinner or a movie or a game of disc golf etc with a member of the opposite sex that you'd like to get to know better and hold a get to know you better conversation. And to keep from getting too attached to any one person you can have social outings with different people.
Most of that should stay pretty casual when you're in high school. And keep most of the physical stuff out of those relationships, physical stuff is just going to unleash a war against your good sense and good judgment.
Eventually when you get to know someone who is irreplaceable, focus in exclusively on that person (start "dating" them) and discussing the life you want to build together and what your expectations of life together will be. If you want to honor God, ideally the period between seriously dating someone and marrying them will be a year or two at most. Longer and there's a good chance you'll give into temptation or just start living together and playing at marriage. Shorter and you may not know your partner as well as you think you should.
And beware people who won't take no for an answer. They're bad news and if you let them in it's going to be very hard to kick them out again.