stay ATC, honestly.
Nowadays, pilots jobs are mostly for cadets (19y/o or so) who are willing to accept any pay and jobs. They even pay to fly.
If you asked this question 10 or 20 years ago, i would say, go for it !
But today, airlines will throw your CV in the garbage without even looking at it.
It is a business, not a career.
I was pilot in my airline, now I am in the other camp. (opposite camp that most of pilots don't like or hate...) but I make more money and the frustration is gone at least.
Though I would not recommend this career to anyone unless you have a solid back up plan in case.
FYI in my airline, you would pay TR and line training. (many accept lol)
and then as a F/O if you want to be a captain one day, you will need to pay 65000usd or so for the LT too even if you have been a good employee for long time in the airline.
So, it means, during your pseudo career as a F/O you would need to save your own money for your own job, not for your futur home or what.
Since I undertood this trap I have decided to see the other camp.
Of course you will always see one or 2 success story but my advice is :
1) you don't know if it's true or not
2) it become more and more rare
3) if you don't believe what many say (included me) you can easily check the truth. Just ask airlines.
my 2 cents