Hi Anthony,
As suggested by others, your best move is to upgrade to family member. This is free and will allow you to start adding your family members to our shared tree. Since we have one global tree, you do not need to merge any trees. The only time we merge is when two profiles are created for one individual.
After you have upgraded, your greeter will leave you more info but feel free to come back to the forum to ask more questions!
Peggy