Resolved Project not entering play mode properly.

I can hear the sounds of the scene playing on and off at random intervals, but it is frozen (See first picture)
You can see that there are two instances of the first level, one of which is greyed out and has "(is loading)" next to it. It also takes up lots of CPU, Memory, and Power Usage. (See second picture)

However when the project is not attempting to enter play mode, it runs fine. (See third picture)

But the Memory still stays high. (See fourth picture)

Is this a problem with Unity, my project, or my computer?

EDIT: The scene that I was recently working on for a couple of days still loads, but the rest don't.

 

I'd look at wherever in your code you load this level. Why are you loading the level which is already loaded? If I were to venture a guess, I'd suspect that you were continually loading the same level over and over. So you're always in a state of loading this level, but never get it to run. Look at the logic in your code for deciding when to load levels.