If you're an adult (at least 18 and up) and have been a horrible person your entire life up to that point, is it possible to change?

The title, really...

18 and up, but any age 18 and up...so could be from age 18 to like age 95, for all I care.

But is it possible to change?

Obviously, for a 20 year old change is most likely easier than for a 60 year old. But the 60 year old should be able to change as well as long as they truly want it and work towards it...right?!

It's never truly too late, is it?

If you wanna change it doesn't matter if you're 18 or 95, right?!