Pumping advice and tips

Hello! So my baby is 8 days old and today I have decided to mainly pump as I find breastfeeding too stressful and too exhausting with other children to also take care of (please no judgment) so what’s the best way to get started? I have a electric single pump. My milk supply is good ( I think) I just did a 10 minute pump on one breast and got just shy of 3oz.

How often should I pump?

How long on each breast?

Advise on storing milk

Any helpful tips?

Should I also nurse occasionally?

Any help would be much appreciated x