Metropolis: I Can Talk to the Past

If I could start my life over again, I would change the past and change the future. Ding~ Your "Conversation in the Past" system has arrived, please check. Jiang Yun made a call: "Hey, it's me in the past, the exam back then..." The next day after hanging up the phone, Jiang Yun found out that he had become the provincial champion. The second conversation passed: "Hey, is this me in the future? It's too late, tell me what the lottery draws are in the last few draws? Me, I want to add a thousand times." The next day, Jiang Yun found out that he had become a billionaire with several listed companies under his name. The introduction is weak, please read the text.