The OP asked what is the meaning of life to you and not to try and prove why you are right about it. Life is different for everyone.
It's true as you get older you will change your opinion.

Some noted atheists have changed thier tune as they approach the end.
In your 20's you go to parties, in your 30's you go to weddings, in your 40's you go to doctors, after that you go to funerals of friends and family. (The lucky ones don't have to watch the others die and pass first.)
In the meantime I'm enjoying the Day I have today. We make this life Heaven or we can make it Hell the choice is yours.