Our life, our actions totally depends on our thoughts. How we deal with them, what we believe and what we interpret through it.
How do we allow our thoughts to carry ourselves, how do we let them define us, is all about what thoughts we process. What we process is what we put it in to actions. Thus here comes the minor difference, the one's who keep working depsite much of struggles while those who just give upon by just one try.
Thus we should feed our mind with the thoughts that make us and not that break us.