Nina,
Congrates on your first tree. Have a blast!
One thing I always did was each year I gave my kids their own ornament on a present. Then when they grew up and moved out of the house they had a set of ornaments for their first tree. Ornaments that they grew up with. I have done it with my grandkids every year also. So they will always have an ornament from Grandma and Grandpa for each year of their life. I date each one and sign them.
Vita, Decorate the most beautiful tree in your BEDROOM. Shut the door when comany comes. Enjoy it!