As for our personal obstacles, I find it inspiring to look at what others had to overcome to reach their goals in life. When we find success in others, it can often motivate us to find success in ourself. Here are a couple of favorite videos in that regard.
Meet Nick Vujicic. He was born with no arms or legs and, while he has struggled to find a place in life, has come to find the happiness that he seeks. Best of all, he shares it with others:
And have you seen the Susan Boyle video? If not, check it out. Here is a similar -- and in my opinion better -- video from Koreas Got Talent. Try not to concentrate too much on the exemplary performance but on his story.
And finally, here are some people who have failed. You might have heard of some of them. ;)
We all have obstacles to our goals in life, just make sure you don't let excuses get in your way. The ones who succeed are those who face their obstacles and never give up. Like Henry Ford once said, "Whether you think you can or can't, you're right!"
From a writing point of view, there is a quote out there that I wish I could attribute to somebody. But it goes: There is a word for a writer who doesn't give up... published.