The final thesis poses a serious challenge for me. Is there a thesis group or somewhere else where I can go for help?

If your study programme does not offer a thesis-writing class or thesis lab, you can follow a thesis workshop at Plexus. If you are mostly struggling with the final stages of your thesis and you find it hard to get started or to keep going, you can always drop by during the open consulatation hours of the student psychologists for advice.