1. All the hardships are meaningful —— God is testing you, in order to give you an important task.
2. Self-recommendation, a lot of benefits —— let others see you, know your existence, know your ability.
3. Never enter the wrong industry —— interpersonal relationships have entanglements and complications, it's not that easy to switch industries.
4. Don't change careers easily —— there are great risks in switching careers, if you don't have strong determination and courage, it's better not to do it rashly.