If you need wisdom and guidance, then pray to the Lord to guide you.

Keep going until you get good counsel that is persuasive for you that you should go elsewhere.

We can't know at any given time how God will bless our faithful witness. So the apparent numerical growth of the church is never a good guide to how faithful we have been in evangelism.

To evangelize properly by delivering the gospel, we need to follow God's agenda.

It's fine to deal with people's doubts and explain why they have good reasons to believe in Christ. But until we tell them the good news of Jesus Christ, we haven't done our job. They need a saviour that God has provided them in Christ. Once they know that, we can do as much apologetics as we need to.

Sometimes we have to wait a long time to see conversions.

We should want to evangelize because of the joy that God puts in our hearts. Ultimately, that's the best reason for sharing our faith.