Welcome to the X series, Einkornwolf!
The series is very well known for being difficult to learn, and there is a huge learning curve with these games.
Once you get past that learning curve and get familiar with all the myriad controls and such, the universe opens up to you though, and many of us have had literally thousands of hours of enjoyment in the games. I have almost 8000 hours in X3: Terran Conflict alone, and I started with X3: Reunion a few years earlier.
Have you gone through the first 5 or 6 tutorials? Those give you a few good hints on how to look for quest indicators and such.. I started with the default Eclipse Vanguard, and after going through the first half of the tutorials, I found a mission given by a Boron (who I thought were not going to be in the game yet!) and I'm having a blast following his suggestions.
In any case, I hope you are enjoying the game.. and if you want to experience another fantastic game, I strongly suggest the X3 Warpack, which has Terran Conflict and Albion Prelude in it.
Happy Gaming!
Eric