Restarting My ACCA Journey

Hi,

I was a very bright student like we all are around some years back, started my acca in 2012 cleared my fundamentals (F4 remaining), I postponed my acca since 2018 because i was stuck in a loop, bad choices, very bad career and professional decisions, depressed anxious, was on verge of killing myself and whatnot, still I recouped myself, stopped acca and got a job in a very irregular field than my study subject, now i think i have regained my motivation that was lacking, finances are sorted out, can i study professional exams and clear my acca journey in around 1.5 years only by reading and learning on opentuition? am i being too optimistic? am i making a mistake, because i have to leave my job if i want to continue my acca , job is paying me well but its not a regular job, it requires my attention for at least 12 to 13 hours sometime more.
I am scared to take a decision, do i need to revisit my fundamentals before starting P level exams, Please can anyone guide me and answer my vague queries.