In Germany you can get by with pretty much any job. If you don’t earn enough you can apply for welfare. It’s a pain in the ass, but better than working yourself to death. If you want more, you need a good education. Generally speaking, the better your education, the more likely it is that you can get by with only speaking English. But wages are lower than in counties like the US.
The past conservative governments have slowed down renewables unnecessarily. But one of the biggest successes of the world destruction lobby is to make people believe the energy transition was hard. Don’t focus too much on the little things. Look at the big picture: https://www.energy-charts.info/charts/renewable_share/chart.htm?l=en&c=DE&interval=year&legendItems=01