I just want to encourage you to get started today. Seek the Lord, write the vision, put in work every week. Don't compare your journey to anyone else's journey. You're not too old and it's not too late.
Being open to learn is the beginning of growth and it means you've realized things need to change. It is true that you do better when you know better. Knowledge is power but activated knowledge is what changes everything. You will know if you're open to learn if you are open to correction. It’s only certain people you should take correction from as well.