Hang in there Henry .... as Jacquie has said 'patience patience patience'.
Many people have problems and frustrations when starting out, and am with Jacquie again in saying I can still have problems finding or aligning objects.
A 12" Dob!!! Wonderful purchase, and am sure you will be proficient in a week or 2.
Are there any local astronomy clubs out your way?? They are usually a great help too.