@ZenQueen
It is hard for anyone, especially someone as young as you, to live in the present. I spent so many years planning for the future, stressing about what would happen next and what I could or couldn't accomplish. The problem was that no matter how much planning I did, the future would arrive however it wanted to. It's important to look forward, but know that you cannot control what happens next. It took me years and years to realize I could guide my life, but not control it.
I think it's great to have a plan and work towards that, but also realize that things change and are beyond our control. And as for the social media you mention... it's so much bull I can't even begin. My 21 year old son decided long ago to stay away from insta, snap, Facebook, etc. He uses Linkin for business and that is as close to real life. My daughter at 17 has been all over social media and shows me the kids who are the more lonely, drug using and unhappy are the ones posting these images that show NOTHING of who they really are.
A lot of my worries subsided when I realized that my life was just going to unfold the way it wanted to and the only thing I could do was to try my best to do what was right. I wish for you the same.