Step 1 of 15 Obtaining a Business Name

First off I would just love to say that I am so excited that I found this website and I can't wait to make some awesome cool friends & acquaintances
I've always wanted to be a small business owner ever since I was a little kid. I'd  sell awful lemonade on the corner of the street or shovelling  driveways to make pocket money. Life always seems to give you lemons and never any good lemonade, or it seems to take a really long time to get good lemonade.
Well right now at this point in my life, I'm single woman/mom with an awesome son who has cerebral palsy ( not in wheelchair) and I have to make sure that he has the best future I can provide, plus possibly some job skills when he's of age.
So my two little business ideas are one to help other people sell their electronics and household items meaning that they would drop their stuff off to me I would take the necessary ways of selling the item for them. ( I don't want to reveal too much at this point. Part 2 is in house repair of a certain popular item which I don't want to discusses at this point. ( but I will down the road, I'm so excited.)
If you noticed I have steps 1 through 15. I would just like to get step one done, go pay for the name and go onto step 2. This way I can have you interact with me for a longer period of time and you can see my accomplishments and hopefully I can make some friends along the way **UPDATE I FOUND MY STORE ID LIKE TO RENT ITS ONLY 600.00 PER MONTH... I HAVE PHOTOS WILL POST ON STEP 2