First of all, I haven't studied the differences between Latin American countries and Spain in detail, but all my classmates are from that country. In comparison, first of all, Spanish is not an orthodox language, but compared with Venezuela, Peru, Cuba and Mexico, there will be little differences in language. For example, Cuba and Venezuela do not distinguish the pronunciation of S and Z, and they are all the same. But in Spanish, there is one thing that needs to be slurred, that is, their pronunciation, that is, ellipsis, there are many complete explosions. Moreover, there are differences in vocabulary between countries, but they are common in some slang. In one country, this is a name, in another country, this is a curse.
As for life, it depends on whether an individual can adapt. Life won't be as stressful as it is in China. Whether studying or anything else, they are mainly laid back, eating, drinking and having fun. In diet, if you like to eat Chili, then Mexico is ok, and few people in other Latin American countries eat Chili.
I hope you can think well, choose and work hard.