Learning a language? Seriously, it really varies from person to person. Generally speaking, it is much more difficult than English, with many changes and irregular changes, but a foundation in English will definitely help. Some people I know studied well for one year, some stayed for five years but still did poorly, and some stayed for two years before returning to China. It all depends on how hard you work. Also, we must communicate with foreigners more, and don't always stay with China people. Communicate with foreigners more, and oral English will be barrier-free after one year.
What classes to watch in class, but it is difficult to understand in the first year.
It was difficult to get in touch with professional books at first, but it was not so difficult to endure reading two books in the past. I think the key is to start. If you can bear it in all aspects, the next days will be easier. If you really can't stand it, just wait for the expiration of your residence to return to China. This must be psychologically prepared to see if you have the perseverance. Some people I know don't have this perseverance. They came here to pay tuition and living expenses for two years, and finally got nothing. I think such people might as well not come here to burn money.
It shouldn't be too difficult to rent a house in the two big cities you mentioned. China is full of students and immigrants and can be found with their help. In addition, you can find a house through newspapers, magazines and some notices, which makes it easier to find a foreigner's house. It is suggested to find a foreign roommate, which will help improve the language. If you stay for a long time and know the situation, you can also try to apply for the dormitory of the school (the requirements of each school may be different). Some online chat groups often publish house advertisements, so you can pay attention to or publish them to find a house. The rent in big cities is slightly more expensive. Italians generally sign contracts more formally, because the laws are relatively sound, and many houses in China do not sign contracts. But many infidelities are actually everywhere, depending on luck.
3. People should be divided into enthusiasm and non-enthusiasm. There is racial discrimination. Many people don't show it, but most people are fine. In fact, it also depends on your openness. There are also many people from China who get along well with foreigners. Although not many, most people from China like to get together. Since you can't change the attitude of foreigners towards you, try to change your attitude towards others. Besides, it's easy to make friends with non-Italians here, because everyone is an immigrant, which will be a good channel to learn a language!
Generally, booking tickets through travel companies and websites should be one or two months in advance, and it should also be divided into peak season and off season.
5. The public security in big cities in Italy is worse than that in small cities, and that in the south is worse than that in the north. Sometimes I hear it was stolen. In some cities, it is reported that people are stealing from Chinese people. But I can only pay attention to it myself.
In fact, I think, no matter how bad the public security is, is it as bad as our own home? I can't believe that two bicycles that were about to fall apart at home were stolen. My friend's shop was stolen, but the police still ignored it. Just take care of things yourself at ordinary times.
6. The food is cheap and expensive, and the discount in the supermarket will be cheaper. More expensive than in China. But if there are some wholesale markets in the city, the food will be very cheap, even cheaper than that in China.
Actually, before I came, everyone had a lot of questions. Many people always want to know all the profiles with one question. Actually, it's the same everywhere. Many things don't have a universal definition, and people have to divide them into different things.
I hope my answer will satisfy you and be adopted. If you have any questions, ask me.