What else can I do??

Hi everyone. Unfortunately, I am one of those moms who struggles to produce milk even after trying everything I know (pumping every 2hrs, drinking tons of water, supplements, milk enhancing treats, hilot, etc.). I am only able to produce less than 60ml of milk in a day.at first but now even lesser than 40ml. I am thinking of selling my breast pump as I wanna give up on breast feeding but is there anything else I can do?? I'm losing hope...