If you will read from verse 1 to verse 32 of this chapter you will understand Jesus discourse with the Pharisees. I want to discuss this word learned in this passage of scripture. The special obedience needed here for Jesus to qualify as our High Priest, He learned experimentally in practical suffering. To learn something you must have some kind of experience whether it be natural or spiritual there must be an experience of some kind. Living a Christian life is not a game but is a daily experience of being obedient to Our Heavenly Father through His Son Jesus Christ.
Nobody wants to suffer rejection, go through hardships etc.
I have overcome the world. Let me caution you as to what the bible says concerning making choices of our own without first talking to our heavenly Father. In closing I want to encourage you to commune with your Heavenly Father daily. Take it to Him in Prayer and He will comfort you if that is what is needed. He will give you direction also .