You are more likely to lose all of your money if your goal is to turn 30k to 1 million in six months as you would have to take on an large amount of risk. Perhaps a more modest goal?
Low risk.
Do you trade US listed stocks?
Yes, but i will not do it initially. Because the Italian broker have a bad execution on the american stock market because it passes from viewtrade or bats.
When it will be ready software with api IB I will make american stock market.
If the future is good, i will invest in research and development and make market making strategies with lightspeed.
@Half Italian. The quality of the commentary here should not deter you.

