Who is the ordinary minister of the sacrament of confirmation in the western chruch? in the eastern church?

The difference between the Western and the Eastern Churches is that The Eastern Confirmation is done by the priest, and all sacraments under the sacrament of initiation is done one-after-another, while in the Western Church, the sacrament of confirmation is done by the bishop, and the other sacraments of initiation are done separately.

Yes you can but you need to figure out your time of your work like make a plan for what you need to do.