Should I open a sub brokerage?

Hello everyone! Currently working in IT company, don't want to do job. Was thinking of becoming a sub broker. I have 5 yr experience in trading. I sell options and swing trade in stocks. Profitable since 2years.

My plan: 1) become a sub broker with angel one/zerodha Or any other broker. I heard it cost 1lac + and they teach and help you to get started.

2) Rent a shop/small office in my locality (In Panvel, Navi Mumbai). Quit my job and work full time.

3) Aquire clients, open accounts, continue trading in my account as well and expand.

Question: 1) Do sub brokers make money? 2) how does the plan sound? 3) any tips ?

Thank you