I am new to the forum but have a ton of experience with poker and felt like I could offer some insight. A quick background on me, I'm a 22 year old senior going to school and have been playing poker pretty seriously for about 3 years, averaging about $50k/year while going to school. Poker is definitely beatable and there are some people just making ridiculous amounts of $$$ every year. The key is to be disciplined when playing and managing a bankroll, and not letting your emotions get the best of you.
Poker can be really brutal when you are running bad, and you will have stretches of time where it seems like absolutely nothing can go right, but as long as you have your head on straight and have the right mentality, it can be a very profitable "job".