First time mom

So I'm breast feeding my baby and he is almost 6weeks old and I'm trying everything I can to get him more milk my supply is very low I have tried power pumping and I'm cluster feeding right now and I have him feeding for almost 2 hours and he empty my boobs but he is still short when it comes to my supply I'm borrowing a scale from lactation doctors to see what he gets from me and I hate giving him formula because I feel like it gives him stomach issues any advice to get my supply going and quickly because only one part of the day I'll have enough for him but the rest of the day is very low I'm currently doing half formula and half breast fed because I'm not producing enough and want to get him off formula