I live in Norway. Taxation is approximately 30 % on capital gains.
While I have 6 months of living expenses, there might be ways for me to go on longer before taking money out of account, so I'm not worried about that. I have stuff to sell, I can take on some additional part time work or even take up a loan if I remain confident in what I'm doing.
Here is my personal recommendation to you. Take it or leave it -
If you haven't put in your required exit time (here in the states referred to as your two weeks) don't yet. You have plenty of passion to pursue this - and that is great. But you need to setup some infrastructure and life stuff first.
Keep sacking away money - try to live on what you'd expect to live as a trader. 2% per month is around 70% per year before taxes (compounding) and a very reasonable goal for an aspiring trader. Crack open an excel sheet and figure out what kind of draw you'd need per month to live. From now until your account is large enough attempt to LIVE off that amount while trading in off hours, at night, or whatever you can. Every dollar you save doing this goes into 3 accounts - a tax deferred retirement for your future, your emergency funds, and FINALLY your trading account.
If you are profitable great, if not you are living well below your means and can keep up with margin calls and other things.
In the mean time:
1. Determine the amount you need to draw each month and factor in your historical drawdown
2. Determine your optimal account size starting - factor in keeping around 40% of your account in cash at any time and your draw from (1) with some extra leeway to account for total AUM growth.
3. Call tax attorneys in your area specializing in finance and figure out how to incorporate in order to avoid extra taxes
4. Talk this through with your girlfriend so she understand what you are getting her into.
I'm not talking out of my ass here. I have sketched up a plan in my trading journal for my switch to day trading when I can do it. This is more-or-less what I'd do (excluding some complications being an American has...)