Well, those are the questions that make you move forward. Of course, they bring lots of pain and despair, but when you get there, when you reach that point, it will all make sense. I don't mean like you should have daily doubts about yourself, which you shouldn't, but you should always try to push yourself further and still be happy with what you have.
I have been under this philosophical state of mind, where I get like this every single day, every single morning. That's what you get when you don't have a job - you think too much...You always wish for the best and try to keep yourself positive, but that's hard work! The world spins faster every time and you see yourself always going around and around with nowhere to go. How do you get out of this cicle? How do you break it? How do you make your dreams work when everything seems to be against you? When you make your choices for love, but they do not seem to favour your professional life? How do you move forward when everything goes around and remain untouchable?
Part of the answer is to watch british tv shows, get inspired, contact people, and always approach someone new with a smile on your face. You know what else helps? FRIENDS! yeah! of course!
Just try not to run out of money :P
Oh! and just so you know, my work with Fin Whales in the Bay of Biscay with be presented by me at the European Cetacean Conference in Cadiz in March!