Life is, hardly, unfair. And this always is true.
I think that, as always, you worry too much about two sides you're trying to choose. Hun, everyone does it XD; and that's OK. It helps us to make decisions with clear decision sadly its not like we can get a trial to try and see which decision is better, in the end.
My go is RELAX. Stop your blogging, travelling etc for a while (few weeks) and simply relax, take a few days and just be 'alone' (I don't mean isolated etc) but rather give yourself and your mind some space, to think, to relax, to atone, or whatever is right for you. Right now it looks like you're thinking too much and in this case, you aren't getting any answers quicker or clearer.
Don't think finding a decision is going to be hard - if you think negatively or cos in the past its always hard for you then it will stay harder. Trust yourself, be positive and don't think of the bad stuff, relax and see where it leads you.
Hope this helps :) x