How much does it require to earn more profit

You are putting the cart before the horse, focus on developing your skill and profits will come. You may not make 100k at once, and that should not be the goal, trading is about a series of small wins which add up in the end.

100k USD? The answer to your question depends on the leverage your broker allows for the instrument you are trading. Brokers give the highest leverage to major currency pairs like EUR/USD. So, lets say your broker allows you a leverage of 1:2000 you will require about $50k USD account balance to be able to make 100k USD profit