Decreasing

You state the problem very clearly, and the fact that you can do so really shows that you are very much on the right road. Many don’t even get so far.

The whole problem of our life was neatly expressed by John the Baptist when he said (John, chap 3, v. 30) ‘He must increase, but I must decrease.’ This you have realised. But you are expecting it to happen suddenly: and also expecting that you should be clearly aware when it does. But neither of these is usual. We are doing well enough if the slow process of being more in Christ and less in ourselves has made a decent beginning in a long life (it will be completed only in the next world). Nor can we observe it happening. All our reports on ourselves are unbelievable, even in worldly matters (no one really hears his own voice as others do, or sees his own face). Much more in spiritual matters. God sees us, and we don’t see ourselves. And by trying too hard to do so, we only get the fidgets and become either too complacent or too much the other way.

Your question what to do is already answered. Go on (as you apparently are going on) doing all your duties. And, in all lawful ways, go on enjoying all that can be enjoyed—your friends, your music, your books. Remember we are told to ‘rejoice’ [Philippians 4:4]. Sometimes when you are wondering what God wants you to do, He really wants to give you something.

As to your spiritual state, try my plan. I pray ‘Lord, show me just so much (neither more nor less) about myself as I need for doing thy will now.’

From The Collected Letters of C.S. Lewis, Volume III
Compiled in Yours, Jack

Supporting the Call

I believe it is very important for the church to confirm a man's calling. Unfortunately many are deluded as to their calling. It is by no means unknown for a man or woman to feel called to tasks that they are not suited to or equipped for. The prayerful judgement of the church is a safeguard against vainglorious feelings and egotistical desires.
The church needs to take its responsibility in this regard very seriously. Care needs to be taken and prayer made for sound judgement. Christians should beware of having a plank in the eye. Jesus wasn't thought highly of in his home town and uttered those sad and dispiriting words: "A prophet is not without honour save in his own country."
Much is always made of the response of J.R. Ryland when William Carey raised the question of whether it was the duty of all Christians to spread the Gospel throughout the world at a minister's meeting of Particular Baptists. He is said to have retorted: "Young man, sit down; when God pleases to convert the heathen, he will do it without your aid and mine." The impression is sometimes given that Carey ignored the put down and was on the next boat to India.
This is far from the truth. Instead he worked to overcome opposition to missionary enterprise and eventually the Particular Baptist Society for the Propagation of the Gospel Amongst the Heathen (subsequently known as the Baptist Missionary Society and since 2000 as BMS World Mission) was founded in October 1792, including Carey, Andrew Fuller, John Ryland, and John Sutcliff as charter members. They then concerned themselves with practical matters such as raising funds, as well as deciding where they would direct their efforts. A medical missionary, Dr. John Thomas, had been in Calcutta and was currently in England raising funds; they agreed to support him and that Carey would accompany him to India.
Carey only went to India after his call was confirmed by the association of churches to which he belonged.

J. Reed in his online commentary on Romans. 

Re-imagining

What I see behind my eyes changes what I see in front of them; my imagination shapes my perception so that I must look not once but twice at the world to see it whole. Walking down the street, I see a wild-looking character sitting on the steps of the library. His gray hair is matted. His dense beard covers the slogan on his grimy T-shirt. His small darting eyes are as volatile as a hawk's. I look once and think "drifter." I look twice and think "John the Baptist," and in that imaginative act my relationship to the man is changed.
Barbara Brown TaylorThe Preaching Life