Do you consider 3DAX to the category of successful projects in which you can invest? Or still not worth it?
I think that giving investment advice is not the most rewarding thing. Everyone should think only with his head and make a decision based on his conclusions!
Of course, the final decision on whether to invest in this or that project lies entirely with the investor. Of course, you need to study the opinions of analysts and reviewers, read forums and social networks, but you only need to make a decision.