Because He prayed the most. Examine the prayers of Jesus and you will see that rarely did He pray for Himself. His prayers were unselfish. This prayer is not self centered. Now of course it is just fine to pray for your needs but let's not run this into the ground.
Time spent in prayer is an investment.
Some years ago a young man approached the foreman of a logging crew and asked for a job. Let's see you fell this tree. The strong young man stepped forward and skillfully felled the great tree. You have fallen far behind the others. But I'm a hard worker, I arrive first and leave last.