Hey Domyalex
I can say this , every one of my mates I learnt to fly with (who perservered) , are today airline or heavy corporate metal pilots.
( not that that is the be all and end all , a c208 on floats is heaven).
The ones who gave up on the dream ( and listened to the peanut gallery) or who were not prepared to work for less than their existing ( non flying job) were the only ones that never made it.
Its very tough getting there and once you are there you might even think that you have climbed the wrong ladder ( because its not all its made out to be and certainly is not the job it once was). However its there for the taking , you must really really want it though.