Jesus that's horrible. I made much more than that straight out of college. But it was in NYC where cost of living is high and taxes destroy you.
The saddest part is that your salary didn't increase much in 5 years? Going from $60k to $70k to 53k euros over 5 years is pretty much tracking inflation. Over 5 years, my salary increased by more than double your entire salary.
You should ask for a raise from time to time or get a better paying job. Especially since DBA/data scientist along with computer security developer/engineer were some of the hottest fields in tech the past 10 years.
Some people can spend a month reading "SQL in 21 days" and get a higher salary than you in many places.