Advice for a young adult.

So Iam 19 years old right now and thinking about life, I know that I can not enjoy the same moment twice and want to have less regrets in my final times.Talking about my current situation I have almost no plan about what to do have a happy and peaceful life and its quite fustrating. So dear ayya,akka whats your experiences and whats your advices.Iam all ears

Cheers!!!