its possibly the worst idea ever, just keep ploughing away at the micro game as and when you can afford it, sort of pay to learn, then when you have the odd good days or rns at cash tables, reward yourself with a tourney or two with the hope of blinking a good cash or win that ill increase your role.
If you go ahead and take out the loan and go bust, which can happen to anyone, especially playing under pressure like that, even if your on a hot streak, its simply not worth the hassle, left broke, with a dented pride, will no do your overall progress any good at all, and may even sour your love of the game.
If your good and its meant to be then hard work and good planning will get you their, shortcuts will just lead too disaster imho more so in this case
best of luck and enjoy your game,