Rotating an Object

Having a very difficult time. I have read every article and have been at it for days (desktop and Oculus) to only try and rotate an image. I am trying so many ways with rotating the object outside this am so I had to import and export it so many time I used up my license. I am ready to throw the towel on this tool. My object came into the scene laying down I want to rotate it and stand it up THAT IS ALL.