Scholarships
There are some foundations and institutions which provide financial support for active and talented scholars. So they can stay focussed, pursue their research and finish their dissertation without any financial worries.
The requirements and conditions are as diverse as the providers of the scholarships.
This LMU website shows an elaborated list of prominent funding opportunities and links for further research:
https://www.en.graduatecenter.uni-muenchen.de/funding_/scholarships/index.html
Maybe you will find the appropriate program for yourself and your concept of graduation.