Good news, DragonLady! Everything you need to know is in the bottom left corner of your monitor screen.
On the very left is the Start Button. It has two columns. The left one is your traditional column that you already know how to use. The right column shows you your "tiles." If you click the one for Store, you will find all kind of great Microsoft-approved programs, many of which are free.
Also, if you press the Start Button, in the very top left is the "hamburger." It looks like three lines. Click it and it will give you everything you need to make adjustments. (I advise you not to change setting until you are familiar with the system, though).
Now, right-click the Start Button and you will get a problem-solving menu.
Next to the Start Button is "Ask Cortana." This outstanding search engine will find anything. It searches the internet and your computer and is one of Windows 10's strong points.