Enter the information from new. Don't just upload a Gedcom as it can overwhelm some people.
You will be amazed how much you may have missed when originally sourcing the profiles for your tree on Ancestry.com. Use the information you already have, Check it is still accurate and try to find new information that collaborates it or has been released since.
Do what you have done by asking for help as lots of people on G2G enjoy helping others.
And don't worry if you make some mistakes as it is part of the Honor Code that we can make mistakes but they are unintentional and we should be understanding.