Best ways to deal a problem are :
1. Express it . Express that you are feeling bad about something. Express to those who are responsible for this and those who can help or guide you to come out of it.
2. Write it down. Write your problems on a piece of paper and keep in pocket of shirt. Also write what are possible remedies of the problem or how and when your problems will be over. You may be feeling that you have some drawbacks or shortcomings which is the reason of the problem... Write that also and work on yourself to overcome problems and strengthen yourself.
You have to be strong to face the world.
3. Trust God. Give your problems to God. He is up there to help all of us and he does. I feel you. You also have to feel and trust. Once you start trusting God things will become easy. God will take away all your troubles.
4. People (Good or bad) come in our lives to teach lessons. Sometimes we do not learn some lessons so situations appear in life to learn those lessons. These situations will repeat until you learn the lessons.
You can write this also that the wrong things you are going through... what they are trying to teach you.
5. Everyone Deals with his problems in his own way. Try your own ways.
6. Be busy always. Do not overthink. Keep yourself busy in work , studies... it will help you grow. Keep moving even if small steps.
7. Solliloqy (talk to yourself) is also helpful. People who look at you talking to yourself might feel you are mad but it's a trick to talk to oneself. You can do it quietly.
8. Treat yourself as your friend and help your friend to come out of trouble.
9. Life is simple. We complicate it ourselves. Live simply and be happy.