I'm thankful you're not making a quick decision about this but are taking time to think it through. It would be easy for you to assume that since others think you're qualified, then you should go ahead. But it isn't necessarily true.
Being a church officer is a position of great spiritual responsibility and trust, and you shouldn't accept it casually or for the wrong reasons. This is why you need to take time to pray about it, because the most important thing you need to discover is God's will about this decision. God knows all about your church, and He also knows your strengths and weaknesses.
To be candid, however, unless you have a strong conviction that God is calling you to accept this position, I would discourage you from doing so. Your role as a business leader may be important, but even more important will be your role as a spiritual leader. Are you able to fulfill that role? The early Christians only chose leaders "who are known to be full of the Spirit and wisdom" (Acts 6:3).
May God guide you as you make your decision, but most of all, may He give you a desire to grow stronger in your faith. Make sure of your commitment to Christ, and then make Him and His Word the center of your life every day. Don't be satisfied with a weak faith, "But grow in the grace and knowledge of our Lord and Savior Jesus Christ" (2 Peter 3:18).