I'm desperate

I'm 6 months post partum and 7 weeks pregnant. My supply has drastically decreased. I know it's because the pregnancy hormones. What can I do?? I want to do everything I can to make it to a year. I breastfeed her then I pump once before bed. The last 2 nights she's woken up wanting to feed when she's been sleeping through the night for forever. She's more fussy during the day and today I gave her 2oz an hour after the first feed then another 2 oz after I feed her the second time. I've make oatmeal lactation cookies with flaxseed and brewers yeast and oatmeal granola with the same. I take fenugreek supplements and just started milk thistle tea even though I detest the taste of liquorice. I'm to the point where I wonder if I could buy those medicine capsules to put brewers yeast into and just take it directly bc I'm tired of eating cookies and not seeing much results. How should I be pumping? What else can I do?? Any other momma's still breastfeed after getting pregnant? Thank you for any advice!