You will find your answer in below link
https://www.elitetrader.com/et/threads/ib-entities-and-trading-permissions-seeking-clarity-on-asian-futures.377551/
Some days Nikkei follows US markets 1 to 1 but sometimes it just doesn't care what other markets are doing.
Have you found any nikkei 225 correlation ?
If you start with $50, a person with your level of trading experience should be able to make 5% profit per day. By this time next year you should have $3,067