Okay. Hmmm. Where to start...
Well first up would have to be your education. That is your first priority. No iffs, ands or butts. Take a look at the world around you. A good edgumacation is a must.
You love fighting games now, but getting into tournaments is a business. Like anything else, you have to practice and train, study and learn; basically treat it like a job. Like King said, he played 4hrs a day every day to get good at MK. Can you handle doing say instant air fans for hours on end to get your execution down? Believe me, it's tedious and boring. Your love of fighting games WILL be tested.
The community is great. A lot of great people here. It's always awesome to be able to find people that share your love of something and can talk to you on a level that you would like. It's also amazing to see people that you previously only saw in streams or chatted with on forums.
The "lifestyle" you speak of really doesn't exist. I see it as an adventure. Dealing with travel and accomodation arrangements, all the new people you'll meet, etc. It's like a real live rpg. Very exciting
My suggestion to you is, stay home. Especially since you don't have an offline scene in your area, you don't want to go out and get a part-time job just to travel. Besides, you'll risk that part-time job since most likely you'll end up working weekends and guess when tournaments are held
So stay home, play the best players you can find online but also spend time offline in the lab working on execution, spacing, etc. Then in a few years, when you have your driver's liscence and are more able to get around, then consider going to tournaments. Also too, I don't know of too many schools in this day and age that doesn't have some sort of gaming club. So when you go off to college or university, odds are you'll start meeting people there to get involved with.