Always keep dreaming and have high hopes for what you can achieve. No one gets old to get success.

You have 50-70 years ahead of you.

It is never too late, or too soon, to aim to be a better you.     Go for it 

yepper, I have a 21 year old GRAND DAUGHTER !!!!!

absolutely, life is what you perceive it to be, my grandpa at 68 considers himself mentally younger than me, 17

It's normal because you are not settled.  Later, you will have a long-term job, maybe marriage and a family.

Anxiety is normal, youre not old, but you should think of what you want to be and do in your life.

Search for something stable, rewarding (financially and mentally)

i'd just worry about 'now' and make the most of it .. the future will be here sooner than you think ..