Your post reminded me of this verse:
Act 10:38 How God anointed Jesus of Nazareth with the Holy Ghost and with power: who went about doing good, and healing all that were oppressed of the devil; for God was with him.
Yes, Jesus was filled with the Holy Ghost from his mother's womb, but he was anointed to do the work He was sent to do, when He was baptized.
This seems to me to be the pattern repeated in the experience of the 11 disciples.
Joh 20:19 Then the same day at evening, being the first day of the week, when the doors were shut where the disciples were assembled for fear of the Jews, came Jesus and stood in the midst, and saith unto them, Peace be unto you.
Joh 20:20 And when he had so said, he shewed unto them his hands and his side. Then were the disciples glad, when they saw the Lord.
Joh 20:21 Then said Jesus to them again, Peace be unto you: as my Father hath sent me, even so send I you.
Joh 20:22 And when he had said this, he breathed on them, and saith unto them, Receive ye the Holy Ghost:
Jesus breathed on them and gave them the Holy Ghost. This was before the day of Pentecost. In fact, it was the day they saw and believed on the risen Lord; the very moment they entered into the New Covenant, which had just been completed by Christ.
Is not this what happens with us today, when we believe on the risen Lord? We immediately receive the Holy Spirit, because "he that hath not the Spirit of Christ, is none of His."
Jesus told his disciples to go to Jerusalem to wait for the empowering they needed to fulfill the Great Commission that He had given them. That is what the day of Pentecost was for. To empower them to carry it out.
The church today gets the cart before the horse too often. We go, and then we wonder why it is so difficult. We need to wait before God today also, to receive that anointing that enables us to what He called us to do.