I feel for you! Here in Sweden we are allowed by law to take 4 consecutive weeks during the summer (June, July, August) but we don't have to if we want to use it sometime else during the year, we usually start with 25 vacation days and need to use 20 of them before we get new days (happens in April for some reason I don't know) and we can save all days above 20, so when/if you get more days you can save more as well. (So if you have 30 days, you can save 10 every year but there is a limit on how long you can save them IIRC).
I feel for you! Here in Sweden we are allowed by law to take 4 consecutive weeks during the summer (June, July, August) but we don't have to if we want to use it sometime else during the year, we usually start with 25 vacation days and need to use 20 of them before we get new days (happens in April for some reason I don't know) and we can save all days above 20, so when/if you get more days you can save more as well. (So if you have 30 days, you can save 10 every year but there is a limit on how long you can save them IIRC).