It takes a lot of courage to change, but if you want the best for your life, it's important to let go of the Negative Nellie in your head.
You're never too old to do the interwork. I could throw up my hands and say "I should have done this year ago, now it's too late, but since I still have my mind and can still get up in the morning, I say, "I'm doing it!"
I hope you have a wonderful week, Alberto! I know I intend to!