1Cor12:11 But all these worketh that one and the selfsame Spirit, dividing to every man severally as He will.
Folks have a bad misunderstanding about gifts. The gift is for the person that needs it, not the person through whom the Holy Sprit may choose to work at that point in time.
Gifts are dispensed according to the will of the Holy Sprit and are for His glory and not our convenience.
If I encounter someone who needs healing, my hope is that the Lord will give them a gift of healing according to His will, timing, and for His glory. Should God will that I be an instrument in that process, my hope is that I’m sufficiently filled with and led by the Holy Spirit to play my part. Through the whole process God gets the glory and someone is blessed.