"No matter how thinly you cut it there are always two sides". Spinosa
In any situation we human beings find ourselves' there are always two ways to look at what's happening- good/bad points of view; pain/pleasure; pessimissm/optimism; the half full or half empty jug of water e.t.c.
The key is to have a view that will allow you to achieve your full potential.
1st you have to trust and have faith in yourself and ability irrespective of what other people may say. Be realistic with what you can achieve.
Next take the route that will uplift you. Remember you can't have one thing without the other but you can choose. You have a choice. Focus is the key. You can focus on the negative if you want to or focus on the positive. It's UP TO YOU.
Then take action and give what ever you do 100%.
No that you will have set-backs but deal with them when they happen and don't will them to happen.
Lastly remember there are no failures only feedbacks and learn from your mistakes.
Hope this helps
kay