I'll try to address your point seriously rather than mocking it like some of the other posters in this thread (Smogon people seem to love a good mock).
Anyway, I don't particularly agree with a couple of things you have decided to do. First off, I do not think you need to dedicate yourself full-time to achieve anything within this game. Unlike actual eSports (god, I despise this term so much), Pokémon does not require as much raw time to get better and hone your craft or even close to as much dedication as some of the more prominent online games do, and that is because the game itself isn't as complex. The skills that one applies to succeed at this game are, in general terms, probability manipulation and experience within the game itself, and by dedicating 40-50 hours per week, you won't really achieve any more success than you would if you were seriously putting in 10, which you can quite comfortably do while still having a job and going to college (I say that from experience). The way you get better at this game is by just playing it over time and acquiring a better grasp on it's nuances, so even if you do gain something from playing it full-time, it will be marginal and won't be even close to being worth your time. You can and probably will be a solid enough player if you just employ some patience and actively try to get better over a longer period of time.
As for my second point, I think that lying to your parents about what you have decided is incredibly irresponsible. They still support you financially and you should at least have the decency to communicate with them about any major endeavours you decide to undertake, especially if they are as wild as this. Moreover, I do think you should talk to them for moral support too, maybe they can show you alternatives or give you better advice on how to approach your situation, it's not always a binary question of going for all of it or nothing, maybe they can show you a way in which you can satiate your desire to become a "Pokémon master" (lol) while still living a "normal" life. Trust me, parents know a hell of a lot. I just hope you don't leave them in the dark about this, because it will be terrible for you and for them too.
I hope this helped and good luck with whatever you decide to do, just please don't become a "full-time mons player" simply because it seems like the most comfortable option.