Hey, guys. 
I'm relatively new to Bitcoin Mining, as you might as seen from the subject. I have a few questions in mind.
Before I ask, one of my hobbies is computer engineering: So you don't need to simplify anything regarding that subject.
Anyhow.

How easy is it to make a profit through mining?
How much should I initially invest?
If I want to make a big profit someday, what are some necessities? More importantly, how should I cool a big room of miners down?

The power here costs .13c/kWh, I'm pretty sure that's a vital piece of information you guys need.
Please help me get started with bitcoin mining! Thank you!! : )