The more He gives you of His blessed Holy Spirit, the more you will ask for; and the more you ask, the more He will give.
Many years ago a good clergyman wrote a tiny prayer, it is a prayer that asks for what God has promised to give; and it asks for this through Him whom the Father hears. It is this: "O God, give me The Holy Spirit, for Jesus Christ's sake. Amen."
Begin today not just saying it, but praying it, till you get a full answer. For you are quite sure to get it; here is God's own promise, "I will put my Spirit within you;" and He has promised it over and over again in other places. Perhaps you will not know at first when the answer comes. Can you see the dew fall? No one ever saw a single drop come down, and yet as soon as the sun rises, you see that it has come, and is sparkling all over the fields. It came long before you saw it, falling sweetly and silently in the twilight and in the dark.
So do not fancy God is not hearing you because you have not felt anything very sudden and wonderful. He is hearing and answering all the time. You would not go on asking unless the dew of His Spirit were already falling upon your heart, and teaching you to pray. The more He gives you of His blessed Spirit, the more you will ask for; and the more you ask, the more He will give.