“How do I know I'm headed the right way at 20?”

Another soul answered...

you don't, you might feel like it but there's really no way of knowing it. it's like asking how do I know if God exists. the answer is you don't. no one does. God exists because of faith. so have faith in whatever you're doing. there will be moments of doubts, but if your faith is stronger than your doubts, keep moving in the direction you decided. but if you're losing faith, start exploring other options. have faith, and be courageous