Hi,
I think that is every ones ask at the start!
My sponsor was ready to help me all the time,so I did not make any contact with my co-sponsor!
After first steps,when I realise what kind of job is this,I was asking for help just for very important things!
So,answer for your question is-
COMMUNICATE WITH YOUR SPONSOR OR CO-SPONSOR IF YOU REALY DO NOT KNOW WHAT TO DO NEXT!