It may happen at times that you feel everyone and everything is against you, but then you keep in mind that aeroplane takes off only when wind is not with it.
Fall down, there is no shame in falling down, what matters is how you rise up. Never let any failure or worry break you. You may be beaten but must not be broken. You are not the only person who feels beaten, life is full of problems for everyone. How you react to problems is important. Mind is very powerful. It can make you or break you. Its your will which drives it to the desired results. 
Suppose in a cricket match when the last ball is remaining and you need a 6 to win, either you will break down by worrying what to do now and how to manage the situation or you will train your mind to hit a 6 six supposing that its the only outcome that can happen to you. Its all about attitude towards problems.