Believe you CAN and you WILL
There's really no way around it. You have no choice but to believe you're capable of doing it; otherwise, you won't get very far.
Yankees great Yogi Berra once quipped, "It ain't over till it's over." What that means is that until you've thrown in the proverbial towel -- until you've given up -- you have a fighting chance at success.
Instead of sitting around and serving up excuses for why you can't do something, try a different approach. With every unsuccessful attempt we gain more wisdom and experience, making us a bit more likely to triumph next time. Positive thinking attracts positive outcomes.
However, success doesn't come without hard work, persistence, and sacrifice. It usually requires a serious investment of some resource -- whether time or money -- that we may not always be inclined to part with. And there will be times where you'll feel so frustrated as to want to quit.
But if you're hungry enough to make it happen, you should be predisposed to doing virtually anything. If that's not the case, maybe you should reassess how badly you want this.
The bottom line is that faith in God and in ourselves keeps us focused on reaching the finish line. And once others see how dedicated you are, they're often willing to lend a hand anyway they can.
Don't give up! Picture yourself succeeding and it will happen. Don't allow negativity -- the thought of letting yourself and others around you down -- trickle into your mind.
When the going gets tough, the tough get going. Show the world that you've got what it takes to achieve anything you set out to do.