We all have differing abilities differing talents, some are cleverer than others. One will shine as a teller in a bank whilst another likes to be handling tools. etc etc ad finitum.
Once you start blaming pre-destination or claiming "it was meant to be" you are leaning into the world of religeon. But the fact is some of us are just not clever enough, its as simple as that. So then if your thing is to become a GM - go for it - but if you don't make it then perhaps (like me) you are just lacking in determination or we are just not as clever as we think. But nothing can be blamed on pre-destination or fate.
However - what ever your designs are I wish you the very best
I think if some one who use to have talent but cant really use it he/she already failed. For many reasons such as not having right things to use or not enough money to spend on it,and many other... back in 2009 i had the chance to talk to a gm he was my friends coach and he came around our club i asked you are a gm and im sure you have a lot of talent ! he said not really i use to work many hours on every single thing on chess while many of friends they think chess is bad game and you cant have fun with it he said that you just need to work hard with that you can reach any kind of rating but you should use talent to remember the patterns on your game not like putting many hours on learning and after a day you almost forgot what you study last night.
Talent is the ability to study hard - GM Vladimir Kramnik
I love this sentence and I am one of the positive guys who thinks that everybody on this world can Do it. If you really want to reach something you can reach it :)