You have done the right thing. You now have a 'trade' to fall back on and have met the expectations of your family.
Now, while you are still young and without commitments, is the time for you to go for your dream.
The worst that can happen is that it doent work out - and you can go back to doing something more mundane.
But at least, in the wee hours, you will never kick yourself for not giving it a go.
Many jobs like pilot (or in my case, policeman) are very very different from the inside and, after a couple of years, you might decide its not for you and go back to your trade.
It happened to me. I never regretted giving it a go. Never regretted going back to my 'day-job' when it didnt work out.
One thing I will absolutely guarantee - your time doing something else will give you valuable insight and skills which will help you in whatever you do.