One of the most powerful tools we have as individuals or humans is our mind or mindset, when well nurture we can achieve what may supposedly be impossible to many. The brain and how the mind work is so powerful and yet so mysterious that even the greatest neuroscientist of our time can't still comprehend its complexity.
And so in nurturing your mind and taking care of it, i recommend the habit of staying positive. It is not an easy habit to develop or inculcate, it takes time, perhaps weeks, months or even years of practice to perfect it, but when it is done it does a whole lot to your personality, to your habits, to how you approach things in life.
The positive mind sees the light at the end of the tunnel, the positive mind understands there's is a silver lining to almost every situation and is able to look out for it quickly such that with time he or she can easily spot the good that may come out of every situation and it able to make good on every opportunity that comes his or her way because it has already been foreseen before it happened.
I may be saying it in such a way that makes it look too easy, well yh, that's the whole point of the complexity of the mindset, if you truly believe you can do it, you can easily do it so, but don't fret if it doesn't come so easily to you, just give it time, and allow things to work out accordingly, time will always be our ally in many things, if only we will learn to see it.