When someone embarks on a new project, the most important thing they can do is to count the costs spiritually, physically, and every other way. They should think through all of the things that are likely to stop them, and decide whether or not they will allow themselves to be stopped. If they know that they will give up midway through the project, then why begin it, why waste time and resources.?
When the Lord God Almighty called me to be a messenger to his people, I counted the costs, and I continue to count them daily. I could never have known all of the things that would happen, hence the reason that I continue to count the costs. I count them not only for myself, but also for the members of God's millennial kingdom.
You also should count the costs of being in God's kingdom, and compare them with the costs of being outside of the kingdom. You should know without a doubt that your place is in the kingdom of God.