Remember, your marks do not fully reflect your potential. Marks are just a measure, which you can improve through your understanding and skills. You need to move forward with patience and hard work.
If you have got less marks or failed in the 10th board exam result, then instead of getting disappointed on your failure, you can see it as a lesson. Some of the suggestions given here may help you.
Don't get discouraged and stay positive. Be confident and work hard towards your goal. To get success in a good career, you have to make your preparation more concrete.
Evaluate yourself by looking at your result. Check whether you gave enough time to prepare for the exam, study regularly, how was the exam? With this, you find your own weaknesses and try to improve them.
Find mistakes in your test results and learn from them. In any subject where your marks are less, try to strengthen that subject, give more time to it. Understand mistakes and find ways to rectify them.
If you are not understanding a topic or have a problem with your preparation, consider the possibility of tutoring or guidance. You can take help from a teacher or expert, this will also increase your confidence.
Work hard to rectify whatever went wrong in the preparation of the board exams or during the exam days. Work harder in your preparation, increase your study time and practice regularly.