Low supply: advice needed please

BabyG813

I have been diagnosed with a low supply. I've tried to increase it with fenugreek and blessed thistle as well as pumping after every feeding. I'd pump MAYBE half an oz total, both breasts. That was about a month ago. I stopped because all of it had lead me to PPD. I really think the PPS was a huge barrier to my supply increasing, but thats under control now. During that time DS needed to be supplemented as he'd lost weight. Currently I BF aprox ten to fifteen minutes total with breast compressions, and DS takes aprox 1.5 to 1.75 oz.

I was starting to wean this week in anticipation of returning to work in November, but learned about power pumping and the possible aid of pineapple juice to increase supply. Things my LC never mentioned. I'm torn. Do I try to relactate with these tips, or go on to wean? ANY advice or insight is appreciated.

Bonus: how can I power pump w a manual pump?