Pumping advice. My daughter is 14 months old. We are still breastfeeding! I pump between 2-3 times a day and usually…

Pumping advice. My daughter is 14 months old. We are still breastfeeding! I pump between 2-3 times a day and usually only get about 4-5 ounces total. We are still nursing morning (before work), evening, bedtime, and weekends on demand. I honestly hate pumping however she is getting half breastmilk and half soy milk during the day (2 4oz bottles total of 8 oz). But I'm not technically pumping enough for her during the day. Should I try to increase my supply at this point or just continue to pump and mix breastmilk and soymilk to get her thru the day?