Thank you again for those worthy insights. For me beeing 29 years old with the goal to build and lead a company it is very interesting to read your experiences.

This topic leads to something else: People beeing negative and toxic. All those phrases like "you can't do that" or "we did it that way all the past and it worked - why change?" belong to people looking into the past, not the future. To improve it is important to learn from experiences but to have a look how to adapt them to future projects and just continue.