FTM breastfeeding

Hello I’m a new mom of 6 day old newborn, my baby isn’t latching on the breast so I’ve decided to just pump and bottle feed it.

However, I’m using this breast pump and the suction is terrible I find it easier to use my manual pump and get more out of that than with the electronic.

Any advice on how to make the suction better. Using the manual has really made my nipples sore after using and I’ve only been getting 1-2 oz but using both nipples for that amount..

Need help 😩 I really want baby to drink my milk instead always formula

Also my breast milk I think it’s still in the beginning stage kinda looks yellowish