Do I have a future in chess?
Possibly of interest:
https://www.chess.com/article/view/can-anyone-be-an-im-or-gm
What It Takes to Become a Chess Master by Andrew Soltis
https://web.archive.org/web/20140708093409/http://www.chesscafe.com/text/review857.pdf
100 Chess Master Trade Secrets by Andrew Soltis
https://web.archive.org/web/20140708094523/http://www.chesscafe.com/text/review916.pdf
Reaching the Top?! by Peter Kurzdorfer
http://www.thechessmind.net/blog/2015/11/16/book-notice-kurzdorfers-reaching-the-top.html
http://www.jeremysilman.com/shop/pc/Reaching-the-Top-77p3905.htm
What It Takes to Become a Grandmaster by GM Andrew Soltis
https://www.chess.com/article/view/don-t-worry-about-your-rating
https://www.chess.com/article/view/am-i-too-old-for-chess
Guessing by this game, how much would it take me to become GM?
It would... take the normal amount (?)
Not sure what kind of answer you're looking for. More or less about 8 years of systematic work, coaching, and traveling to big tournaments will get you about as good as you'll ever be. Whether or not that's GM depends.
The game you posted may have been a lot of fun, because your opponent gave no resistance, so all your moves felt harmonious right up until you won, but that type of game isn't very telling.
Did you ever see the Searching for Bobby Fischer movie? It was based on a real child player who never did become a GM. Ever heard of the Polgar family? Three daughters raised with intensive chess training from an early age. Two of them became GMs, but one did not. As far as I know, there is no way to assign a rating based on a game, and no way to tell how far a player will progress based on a game.
Why is everyone trying to become a GM first? Why not become a regular master first? And then try to become a GM.
Also, one game isn't enough to tell anything. You would have to take a large, random sampling of games from various positions.
As I understand it, Chess.com does have this thing called CAPS that evaluates players based on games.
https://www.chess.com/article/view/who-was-the-best-world-chess-champion-in-history
If one really wants, one might want (just for laughs) to look into trying to get one's games evaluated by CAPS. I don't know if such a service is actually available.
Why is everyone trying to become a GM first? Why not become a regular master first? And then try to become a GM.
I suspect that many people are thinking of that scene in the Searching for Bobby Fischer movie where the Ben Kingsley character observes the play of the Max Pomeranc character and foresees great things.
It is impossible to judge your potential from one game. it depends on your age, your lifestyle, your health, your motivation and many more things, it is not just a matter of how smart or talented you are.
How many games should I post to get an average rating guess by you guys? Maybe GM is too much so let me ask another question.
According to those games. What would my FIDE rating be?
He can be anything he wants to be! Believe it, achieve it! I'll meet you at the top dude!
I like your youthful enthusiasm, but sometimes I worry about you. That stuff about migraines isn't exactly a positive sign. Also, didn't you tell us about learning the Lucena thing in the last few days? Nothing wrong with that, but it does suggest that you have a long way to go. Silman gets to that topic on page 121 of his endgame course - a book with more than 500 pages. I have known many people who liked math up to some point, but stopped wanting to try to progress, once that point was reached.
By all means, continue your chess studies if you enjoy it, but I hope that you will make sure that you work hard on an alternative career. Just to take one example, Michael Stean actually did become a GM, but he also became a tax accountant and eventually dropped out of chess.
https://web.archive.org/web/20140708104258/http://www.chesscafe.com/text/review400.pdf
Guessing by this game, how much would it take me to become GM?