Tips on Medella Manual Breast Pump??

I just tried the manual pump for the first time and I don’t think I’m using it properly.

What speed should I be using? (Squeezes per min?)

How long should the pulls be?

(Mississippi’s?)

How much milk should I expect to see after 20 minutes?

I’m on day 8 of breastfeeding and I know my baby is getting enough but I swear I got barely anything with the pump.

😩😩😩😩😩