You have two missions.
The first is the one you tell people about. The nice, workable, “good job” mission. The one that feels pretty much attainable for you, with what you believe you’re capable of today.
The second is the one you’re afraid to tell people about. The one inside your heart. The one you wish you could make, the big difference, the dent in the universe.
The universe would be a lot more dinged up – for better – if more people like you focused less on the first, and more on the second.