I never had a foreign holiday until I went on honeymoon at the age of 25.
We had holidays in our own country, renting holiday homes, self catering but eating out occasionally, going on lots of outings and having lots of picnics, doing a range of nice hikes up mountains, swimming in the sea, going to local areas of historical significance or beauty, .....and had a lot of fun.
As adults, DH and I have not gone abroad every year - we have rented places in our country, or not gone far (we've had some lovely holidays in the UK, for example).
Going by ferry can be an alternative.
Going by train.
Going to places off the beaten track.
Think about camping.
We've stayed in lovely places in France, flying in, on the coast.
Think about doing a long weekend rather than 2 whole weeks. Or just 1 week.
How about a "staycation" in your local area and doing all those things you always said you would and never have, as if you were a tourist there?
Do your own arrangements - get a flight, find an air b-n-b or a self catering company, or even a nice hotel and book direct, find local areas of interest or attractions, and organize trips yourself. Often there are trips available organized locally even if not through a package operator.
It's life. Your DC need to attend school. It's not that long until they are in secondary with longer holidays, and until they no longer need to go with you and you can go again on the more off-peak times.