Maybe bad mastering, sounds totally over-compressed.
does the track really begins and ends like that? or is this a “preview” ?
I agree with other authors reply and I will add: It sounds thin, harsh and grainy. Your synth is a bit loud and hard on ears. You lack sub frequencies (especially for that kind of music). You don’t use panning enough (it sounds too much centered).
I hope it helps! 
Thanks for your feedback and tips.
It is very important for me
Thanks for your feedback and tips.
It is very important for me.
This is the full version
the intro and outro is problematic, you can’t just start a song like that, put maybe a reverse fx or something, and make the outro last more with the lead tail and reverb.
Thank you very much for your advice.