Hey Teenager, calm down! You probably have at least another ten or fifteen years to date- it's absolutely fine to be 15 [or 16...or 17] and not have been in a relationship before. I'm 16 and I've only had one that lasted a month and brought a lot more unhappiness than happiness. My advice- don't worry so much about dating, worry more about enjoying what's left of childhood. Lol or non-adulthood if you'd rather not be considered a child
You'll have the rest of your life to worry about dating- you'll never get the chance to be young again.