I'm 23 years old going 24 next month.. I stopped school (college) for about 4 years now.. and recently Im thinking about going back to school. Do you think it's too late for me and just focus on other things ? Besides, money is also a problem, as you know, college tuition fees are expensive.

I don't. I think alot of people would go back to school (including myself) .
Its never too late for anyone to better themselves (if its going back to school... or changing how they treat people.... ).
I wish you the best of your luck in your choice.