Sleep train confusion.

Hi guys, so my LO is 20 weeks and since 15-16 weeks has been waking up almost every hour or so may do a longer stretch here and there but typically 45-75mins at night. So doing about 15-20 wakeups.

His day schedule has been all over the place last 2-3 weeks as the broken sleep overnight and short day naps (30-45) are just a cycle of overtiredness ( I try to rescue sleeps when I can by contact napping when waking and can get up to one 2-2.5 hour nap in..

anyways my problem is I started sleep training last night (as I’m barely existing day by day from the constant wake up’s 😭) by doing modified ferber (idk if that’s actually what I was doing since I was by his side the whole time cot comforting and if he really needed me I’d pick up and put back down once calm) and he was down in 13mins! I did shush and pat him at the end so idk if that breaks the sleep training but it’s progress as he’s a rocked or breast fed to sleep baby typically.

My question is what do I do with wake ups since he’s waking every hour. Do I do the modified Ferber? Or do I wait till that first initial sleep he can do on his own then maybe the wake ups will slowly decrease?

Thanks for the help in advance, From a sleep deprived mum.