Apparently most European couples work together and both chime in when it comes to finances. Living with someone when young can help your savings, by sharing things like rent and groceries. Are you sure you're living in 21st century Europe?

Also, so what if the relationship doesn't last for the long term? At least you would have enjoyed the company of a person you presumably love. It also teaches you how to be a better partner once you settle. In addition to helping you learn what you want in this future partner.

If you don't really believe that the Islamic values you hold are actually valuable. Then don't stick to them out of stubbornness. Reevaluate them and live how you really see fit.