When I was in college (I think), in a psychology class (I think), I learned about something called self-fulfilling prophecy. I don't remember all of the ins and outs of it, and I'm not really willing to look it up, but we can safely say that the gist of it is, if you think something is going to happen a certain way, it generally will.
Basically, your attitude determines your results. In everything.
If, for example, you think/say that every time you travel your flights are delayed or your bags are lost or something bad happens; the chances are good that when you travel one of those things will happen.
I will admit to being guilty of this. I have said, "that will never work for me." And it didn't.
"He'll never go for a girl like me." And he didn't.
"They won't hire me." And they didn't.
It's not that I didn't try for those things I wanted, but I mentally sabotaged myself. Even if I didn't realize it at the time.
I recently told someone, "I have a hard time feeling bad for people who create the situation they are in, which I am expected to feel bad for."
The time is now to think positive. To say, "I can do that."
"I will do that."
"This is going to be amazing!"