Thank you for the opportunity to help you with your question!
To know yourself, you need to think about the things you like doing (interests and talent). Think also the areas you are good at it. For example, if you you finds that all your hobbies are computer and you are good on a computer, then it means you love technology .
To know the world of work, one should think about the area he or she have choose to major. Also think about what you consider as an ideal job to you. When you consider both consideration, you can find the answer to your future career. Now combine your interests,your areas of perfection,your specialization at school and your dream job and find a career that fulfils those criteria
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Please let me know if you need any clarification. I'm always happy to answer your questions.