I Tim. 4:14-15 Do not neglect the spiritual gift you received through the prophecies spoken to you when the elders of the church laid their hands on you. Give your complete attention to these matters. Throw yourself into your tasks so that everyone will see your progress.
How one gets his spiritual gifts is not the issue here. The point is that we all have gifts given to us by the Spirit to be used for the glory of Christ in the world and we are to use them.
The first issue is identifying our gifts. It is not a matter of whether or not you have any, you do. Every believer in Christ is gifted to serve Christ in and through the church. What is it that you can offer to Christ? Gifts are as varied as there are people. We do things differently than one another and in varied degrees. God gives each of us gifts suited for our personalities, abilities, and character to handle them. Whatever He has entrusted to you to use to serve Him, you are in disobedience if you aren't using them. If you don't know what your giftedness is, consider what you can do well and find a way to do it to serve the Lord in and outside the church.
Spiritual gifts are those things that we offer to the Lord as an act of worship. All of our lives should be an act of worship. We live in homage to the Lord and seek always to please Him. We don't live for ourselves, we live for the Lord.
Throw yourself into your tasks. Don't half-heartedly serve the Lord. Do what you do with enthusiasm and energy. If you love the Lord as you should, you will want to give Him your best efforts. You will want to serve Him so that everyone will see your enthusiasm and desire for the Lord.
This should be on the top of our list of things to do in life. We should always be striving to excel in our ability to serve the Lord. Mediocrity has no place in the life of a person who truly loves Christ.