The Bible is full of stories of men and women who were called by God to do difficult and even impossible things and found God to be sufficient.
If you want to know your calling, don’t go “calling-looking.” Go God-looking. God knows where He wants you, what He is calling you to do, when He wants you to do it, and how He wants it done. Therefore, if you want to find your calling, look for God. When you find God, His calling will find you.