Help me increase my supply!

M

I'm now 4 weeks pp with my littly boy and my milk supply has totally tanked. I was getting about 2 to 2.5 ounces per pumping session but now I'm barely getting an ounce. What is your best advice to get it back up? I can't stand the taste/smell of fenugreek or Mothers Milk tea. I'm pumping every 3 hours, 4 hours at night. give me advice!