Practice with Regs under 12/12 from seed , it will give you a similar type of grow .
No overthinking needed. Autos need very little as far as “ feeding “ .... no complicated mixes or multi bottles.
A good already ammended soil will carry all the way til chop with minimal tweaks.
Host medium will power plant for weeks .... alone.
Then you can top dress either with same or a “ hotter mix “ like FFOF and water in.
Alternative that is also stupid simple is a tablespoon or so ( depending on container size ) of Dry fertilizer.... like Dr. Earth Premium gold , Flower girl , Happy Frog fruit and flower , Tomato Tobe , etc.
Not miracle grow , as it feeds “ at every watering “ with slow release Nutes ....
Most autos go 90 days ( + or - ) .... that is why over the top feeding is not required . More experienced sometimes go with teas and soil drenches , but allowing host medium to do all the work up front is the easiest method.