I am very new to any kind of content design, and this is my first time ever using Unreal Engine 4. I watched a Youtube video on making a simple square room which I did, but I want to use my own textures since I actually plan on making my own game. I took some pictures of the carpet in my room. The pictures are 2560x2560 (125% scale of 2048x2048). They are pretty high quality and should look good on the floor. But it makes them into a bunch of little boxes, I just want it stretched to fit the entire surface.
I am a huge noob at this so please explain everything very simply and in detail.