Maybe it is to become more like Jesus. And it could be all of the above. The important thing is that you realize it. Realize that God has you here for a higher purpose. When you do you will be able to make the adjustment with greater ease.
Life is much easier to bear when it has meaning.
If you let him guide you, you will be blown away in amazement. Life is also much easier to bear when you have hope. Hope is looking forward toward to the fulfillment of a promise. God promises that we will be with him in heaven if we know him. And in heaven we will be with those we love and who know him, too, forever.