Yes, Jesus gave us the commission to go and tell the world, but make no mistake, you are not responsible for the world accepting Jesus. He tells us over and over again that it is the Father who draws them. It is natural for us to feel like we need a purpose, and that there must be something for us to do to prove we are worthy, but this is why believing in Jesus is so different than other religions, all He requires is for us to believe in the Him. I’m going to say this and will probably be blasted by the “Pharisees,” but it’s hard work to truly believe that Jesus is God! We say we believe, but do we trust in that truth? Fretting and worrying over your problem is lack of belief. Remember Jesus saying “And which of you by being anxious can add a single hour to his span of life?’” We want to believe, but we continually question His plan. There is an upside to this, He knows we are weak. His disciples walked with Him daily and still suffered unbelief. The thing you need most is the strengthening of your faith. How do you do that? “So faith comes from hearing, and hearing through the word of Christ.” Get your nose into the Bible daily, and your faith will be strengthened.
Then they said to him, “What must we do, to be doing the works of God?” Jesus answered them, “This is the work of God, that you believe in him whom he has sent.” John 6:28-29