If you don't mind being taken out of the EU in a couple of years, you could move to the UK and trade via spreadbetting. This is legal here, controlled by the financial regulator and totally tax-free - no need to form a company or even complete a tax return. The leverage rates are under threat however so more capital may soon be needed than currently.
I think that if you trade professionally via spread-betting HMRC will not allow you to do so tax-free if it's your main source of income. Assuming they find out. Even if you do it limits your ability to get tax relief on pension contributions.