Returning to 1996, My Youth Is Like a Reverse Journey

In 2018, Li Donghai is already 40 years old. When he wakes up, he returns to Shanghai in 1996. He is still a migrant worker who graduated from high school and went out to work. In his previous life, he was admitted to Bingcheng University. Why are you still messing around in time travel? Then will the history I know also change? Then how can I take advantage of the rising tide and become the richest man? Well, the landlord kicked me out on the first day, so it wasn't a good start!