After I Transmigrated, I Gained Countless Skills

An infinite-world/quick transmigration story + career fiction + reincarnation/System.

Through many different careers, the protagonist finds release through reincarnation.

Is he a refined egoist fleeing from responsibility, an angry youth forced to work, or a compassionate person who sees through human nature?

Human nature puts the protagonist through one trial after another. Will he sink, rise up, or run away? What would you do?