About going to Europe for undergraduate study.
For Europe, Britain should not consider it. Tuition is extremely expensive, burning money. Northern Europe also collects tuition fees, and no place is free. Southern European countries spend less. But in any case, to study abroad in Europe, you have to prepare for 10w or more in one year. Moreover, undergraduate courses in Europe are not easy to graduate. It is normal to study for five years. You need to know the local languages, such as French, German, Spanish, Italian, etc., and reach a certain level. Otherwise, you have to study for the preparatory course before going out, which is another expense. So at the moment, your time is very tight. It is of practical significance to take the college entrance examination with peace of mind.