Servus! Du bist aus Schongau, ich komm aus Weilheim :D
But since this is an english site: Just focus on the song. How do you want people to listen to your stuff? Every track on its own or the combined mix? Unless things are playing solo, who cares how they sound without context? Context is everything.
Also mixing is hard, just keep at it and you will see how it gets better. Maybe just focus on the basics: loudness/Reverb/delay/EQ and you should be able to place everything where you want it in the mix. Get a couple of decent headphones to know whats going on with your sounds. If overall loudness is what you are after you should look into saturation/distortion and compression.
But the main thing in my opinion should be the music/composition itself. I always look for cool sounds and how to get some emotion across in my music. I think that's what it is mainly about. All that technical stuff should only be a tool to serve that purpose.