Is doing ICAEW in 3 years ambitious or reasonable?

For context, I am the most experienced junior at my firm.

I am currently doing a pre qualification which will get me some exemptions for ICAEW when I move into it this year (4 exams at certificate level and I think approx a year off time qualifying)

I just wondered how ambitious it would be to get ICAEW done in 3 years, I know so many people that just get stuck on it for like 5-10 years, it’s my worst nightmare.

My work ethic is pretty relentless, my prior studies I nearly aced some exams and got the qualifications done a lot faster than average.

I am young and live at home with no other responsibilities so can dedicate all my time to study, I am doing approx 3-5 hours on working days then 8-10 hours a day Saturday and Sunday for my current qualifications.

Any tips or advice please let me know!