Help, please!!!

I have an 8 day old in the NICU and I'm struggling to provide enough milk for her. I'm getting just enough for one feeding (35ml) and that's with a lot of effort. Meaning I have to pump each side two to three times per session to get that. I've been taking upspring milk flow (fenugreek and blessed thistle) but it doesn't seem to be helping any. Any tips on increasing my supply would be great, I'm feeling so lost right now!