i need help in my life

im 16 and a junior in high school. I was a basketball and football player for the last 2 years of hs, but I decided to quit them to pursue my career and work. I am a generally good looking tall and well liked guy, and I get really good grades and have lots of friends. I don't party but I spend time with lots of people through other ways. Even with all these things I feel like I have going for me I still feel like my days can be pointless sometimes. I've been working out and eating right more consistently than ever. I work out before school and get my meals in. I am also seeing great progress and feel very confident about my physique as well as looks. Even with this "good" stuff i have going for me I feel empty and I don't have much fun doing any of this. I have tried new hobbies like golfing and working on my car, but these only brought temporary relief before i become bored and end up feeling the same emptiness. i have also tried to fill this void with girls which i feel like i can get pretty easily but they don't even interest me anymore. i need help on how to get control over these feelings and how to feel like im alive again. i spend about 3 hours a day on social media and have quite a large following if that matters, maybe social media is the problem? i don't know but i just need something to help with this feeling