This might be an unpopular opinion from all the other 500 blogs you have read about pumping. But I'm a firm believer in doing what works for you and your family. I also believe that your mental health is important in your breastfeeding or breast pumping journey.
Asher just hit 5 months old. I have exclusively pumped from the start because I didn't make enough milk with my first child and I needed peace of mind that he was getting enough milk. I have followed this schedule since he was about 3.5 months old and it has worked out well for us. I pump on average 34 ounces a day which feeds him and I have been able to freeze some.
My first pump of the day is normally around 5am unless he wakes up earlier. I always pump with my Spectra pump first thing in the morning, as I normally pump about 12 ounces and my boobs are so engorged that I can't get my Elvie pump to latch good. Second pump of the day is at 8am, third is at noon, forth is at 5pm, (which I will use my spectra or Elvie pump) and ending my last pump of the day at 10pm which I always end with using my Spectra pump as it empties me this best right before bed.