Assalaam,
Well, good sister, it's Islamically okay not to wear niqab. But you'll get the reward of your good intentions, inshallah.
In the Netherlands, there are other Muslim sisters just like you(And brothers too..). Associate with your sisters and try to change things to the better. Share your problems, fears, hopes. And if you find a way out to a Muslim country, I guess it's better to practice Islam, but there is a downside..
According to wikipedia, there are 850 000 Muslims in the Netherlands, 5 per cent are Dutch, which is 42 500 people. If you want to marry, I recommend that you look for a husband from your area, a Dutch. You'll have a bunch of important things to share: the same background, the same culture, customs, the same language, the same problems, and I can go on and on..
And if worse comes to worst, you're not a lonely stranger woman thousands of miles away in need for lots of money to go back home..
This is just my opinion. Brother Abu Loren may think otherwise.
I pray to Allah for you all,
Peace and blessings!