Engorgement pain

I am pumping mostly every 3-4 hours, doing breast milk bottle feeding during the day, formula bottle feeding at night, and trying to get at least 1-2 breastfeeding sessions at the breast per day. I struggle with painful enforcement at least once a day and use hot pads and pump when this happens to relieve the pressure but I really don’t want to be tied to the breast pump, especially if it happens when I am out of the house. How can I cut back on pumping to help with this? Even if if means doing more bottle feeding with formula or something because this is so painful. My baby girl is 4 weeks old and now I’m just trying to pump/BF enough for maybe a few feedings fo expose her to BM until she is 3 months old.