I agree with a lot of the posters here.

28 is not too old for most things one can try, including some physical things.

FYI I want to ice skate again . . but I am 55 and had a bad accident that prevents my knee from working properly. This is reality.

I had a similar "evaluation" of myself about college. This was something that was not reality and I am so happy I decided to go for it.

In reality, my being 41 when going to college for the first time, was the best decision of my life! One thing that surprised me is that my life knowledge made me a better student than someone who was 20. A perk I never realized till crossing that bridge.

Also FYI the degree was in interior design. One of my classes was Computer Aided Design. I got into that class and did not even know how to turn on the computer. I ended up getting an A in that class and producing some of the most interesting work the instructor ever saw.

You must get around what you believe is really going to happen in a situation and not let that stop you from trying what you want to go for. Do what you want and the right people will just appear in your circle to help and you will get what you want and need.