|Your explanation lacks many details.|
If you are having trouble starting a machine for the first time and you just purchased it (whether purchased new or used), then bring it back and have them show you it works properly or replace it with another of the same or equivalent. Even if it is not new, they still have a responsibility to make sure that it is in good working condition when you get it (as long as you did not purchase it in an as-is condition) and should have at least a short used product warranty period (30 to 90 days).
Please explain better so we can help you.
You have to be a little bit crazy to keep you from going insane.