Yesterday I stumbled across my Sisters old Telescope while cleaning up and put it back together(somehow). When i tried looking through it I found that one of the mirrors inside needs to be adjusted because I saw both my eye and the wall through the viewer. If anybody can Help please leave a comment. If it helps I have an: "Infinity By Meade " Model D=114 F=900 f/8
Your model # isn't your model #, just so you know. It all depends if it's a reflective or refracting telescope. If it's one, you could have a lens issue. If it's the other, could just be an eyepiece issue. Sounds reflective.
Just get a pair of binoculars. You'll be able to see your hot neighbor just fine, and you'll be able to use both eyes
The lens is in the wrong place most likely they have to face a certain way to get the right angle and views.