You will find much joy and satisfaction in overcoming these hardships. As I have explained, studying abroad is a good way to understand yourself, your language, and culture, as well as foreign language, people and culture. It is difficult to say whether it is expensive to study abroad. Education is expensive in most countries, and higher education is more expensive for students or their families, although there are often scholarships or financial aid available. Education in more advanced countries are generally more expensive.
Some countries charge more money to foreign students than to local students.
In the case of the European Union, tuition is higher for students from countries outside of the European Union. If you study abroad, you need to pay transportation, lodging, food, and some additional expenses such as medical insurance, which you probably need to pay even if you are living with your parents to go to a university. When I went to a graduate school in the United States in 1972, it was very expensive to go, study and live there. A one way plane ticket cost about 150,000 yen, which was a 3-4 month salary for college graduates. The tuition for one academic year was about three times more expensive than that was at Doshisha University, a private school in Japan.