I honestly dont know what is going on

So lately I've been showing signs of what I think is anxiety. For example sleep agression in the form of bruxism, and even tearing holes in my bed sheets. I feel like I am missing out on my teenage years, I have no motivation in learning, don't know what career path I want to take after highschool and feel like I only have a purpose in my family, to serve others. During the day I distract myself trough social media which has lead me to massive procrastination, and during the night I can't sleep because of all the thoughts that I am having. I grew up thinking that others have it worse so I shouldn't complain, and everytime I had to solve things on my own... especially because I wouldn't reach out to people I know, what would they think of me... If you know any productive outlets to express myself let me know please I feel like that would help. Thanks for reading my story-thingie!