my baby boy is just under 9 months and my milk ...

my baby boy is just under 9 months and my milk has all but gone. so now he is having formula i was looking forward to getting to 12 months but i have tried everything to get my supply up but nothing worked. To make it worse my little boy has a viral infection and i know that breastmilk will help him but i just cant do it. But on the up side he really likes being able to feed himself. Mother nature is so cruel sometimes