you failed? go on cry it all out, be angry, be disappointed, complain all that you want. but i want you to think about a couple of things: will it affect your life in any way? are you going to remember it in 10 years, 5 years or even in a year? i bet you won’t so don’t think you are a failure, don’t hate on yourself. you will make mistakes, you will fail hard but you will also learn from them, you will grow and you will get better.
if things don’t go your way, keep fighting. keep doing. it’s okay to be sad for a while, but it’s so important to get up again and analyse what went wrong, set up a new plan, and continue working towards your goals. regretting the past isn’t going to help you in the present, there’s nothing you can do now except learn from your mistakes and fight for your dreams.