My calling in the church is one where I am required to pray about giving other people callings. I never realized how difficult it is. Not the praying part, but the part where I receive inspiration that I believe someone should be called to a particular calling, but that person seems to have many burdens already, and I don't necessarily want to give him/her more to do. Plus, sometimes people like their current callings... why do I have to be the one who is the conduit that ruins their happiness? Luckily, the Lord usually lets people grow to love their callings, as I have with mine.
I was quite happy minding my own business as a Sunday School teacher (12/13 year olds) until I was called to be the primary president. Having never served in either a presidency or the Primary previously, I was quite daunted by the task. There have been many bumps in the road... sometimes my inspiration doesn't match up to the bishoprics, and I bring quite a few of my own prejudices to the table too. It can be hard to decipher between my ideas and the Lord's ideas. Often, we get a calling filled, only to have to refill it a couple of months down the road.
But I really am grateful for the calling. I have learned a lot in the past year and a half... and I really appreciate people in the ward so much more now... both for the work they do in the church to help it run smoothly, and all the subbing they do in Primary.