I can't look inside of my models I am a very beginner with blender and I had always the opportunity to zoom inside of my models when im in the edit mode. Now I can zoom as much as I want but never get inside of the model. Can someone maybe help me? this would be really great!
Thank you!
-Chapi
You may need to change from Ortographic to Perspective using Numpad 5 and try zooming in again.

Look in the top left of the Viewport: if it says Ortho you won't be able to see the "inside" of objects, if it saysPersp you probably will.