There is not a numerical commandment from God stating the amount of souls YOU need to lead to Christ. However.. There is a commission telling us to "go therefore and make disciples of all nations."
So, how can I do that? I am a nobody, I am not a master of the word. Can I truly accomplish this task?

Not everyone can accomplish what Peter did on Pentecost and preach a sermon that leads to 3,000 people responding to the invitation. However... each one of us is to share the word and lead others to Jesus. Is there a numerical benchmark of souls I have to lead to salvation?

Some lead thousands, others lead hundreds, some lead a few, and others don't know where to start.

Scripture tells us to start small. Not everyone can lead thousands to Christ, but everyone in the body of Christ contributes to the overall picture.