My advice - You are still young and have so much more ahead of you. Enjoy all you can while you can, because as you get older, time passes faster and the amount of time and energy you have to realize and experience new things becomes more difficult.
You have actually done a lot that you can already be proud of in the time you have had. Just take the time to enjoy each experience and don't think about the what if's or could have been's. Don't compare yourself and your experience to theirs, because it's your life. The experiences and achievements you have, make your life unique and special.
I agree that each person has it's own progress. As for me I'm just getting a little patient getting into my goals and I want to do it as fast as possible but I'm learning through the process. I also understand I don't have control that much control in life, I only have control with my attitude towards the present moment.