All your own "suggestions" for debate are hints, and do correct me if I'm wrong, that you're aching to get away from your current situation more so than knowing that you really want to trade for a living. Certain "hard to get your foot in the door" does have unpaid internships and what have you, but I'd say trading is too niche for that to be an option. There's no viable way to learn while doing something else to pay the bills, best as I can tell.
You're approaching the issue the wrong way around, would be my advice. It's hard, in fact near impossible imo, to go from an 8-9 hour day of not enjoying life all that much and feeling it's tiring, to setting down in front of screen and flicking a switch to become someone with the positive outlook needed to spot trading opportunities and to perform at your peak.
Don't mean to come across too much like Tony Robbins, but unless your attitude changes towards your current job to something along the lines of leaving for work thinking that you're going to have an awesome day and you're going to be brilliant at it, then what's the flipping point? And more than that, you've got next to no chance at being awesome and brilliant when you get home to trade. Worse still, should I be wrong, and you do have a chance and do make it, what if trading as a job and chore is not something you enjoy all that much and is tiring? You'll have been unhappy for years, for the sake of striving for some unknown quantity that is trading.