Do you have any control over what happens to you when you die

No. You have no control over what happens to you when you die. You only have control over the life you live. When you die you are thrown into your next life. And it is there that you need to control what you do. The only way to control what happens to you when you die is to live a better life when you are alive.

And how do you live a better life. By showing kindness understanding patience empathy and a willingness to help others. To seek wisdom knowledge and truth. That is how you earn a better life.