foxxi - Don't be sad. You're not the only one who's afraid to go to university or college. Everyone is scared of that responsibility. But I think it is important that you put together a complete application package so that the admissions committee can make a positive decision about you. You can go to professionals such as https://www.personalstatementwriter.org/personal-statement-writing-and-editing/teaching-personal-statement/ or you can try to write it yourself.

peter532 - If you are planning to apply to a study abroad program, do not forget the letters of recommendation. In this case, provide letters from teachers or others who can attest to your ability to study in English and adapt to a new cultural environment.