InfiniteInsanity

Is there anyone who can explain to me what the Squeeze/Sandwich Theorem is how I'm supposed to use it to find the limits of things?

I'm really confused, and tired. I don't have the energy to sit down and watch a video on it. It'll just put me to sleep.

If anyone knows and could explain it to me that would be very nice. If not don't feel bad or anything I'm sure I'll figure it out soon.