There are too many things to do in Las Vegas. My suggestion do some research of what is most important to you prior to your trip then "shadow plan" at least one half of your time during the day. Always be open to change your plans as this town offers so much.

After your first trip, go home with whatever knowkedge your trip provided, and plan for the next one. This is NOT a "one visit town"

..... but most of all seize the time away and enjoy.