I started to learn american pronunciation, but it is very difficult for me to hear mistakes. Could you please listen to this very short audio and tell me if I said something wrong, thank you!
Quite natural - but the use of 'like' every other clause is not very effective
It is quite good, but I definitely hear a slavic sound. It is very hard to pinpoint where it comes from though. Here are some places where some sounds are off:
this: should be short i, sounds long, also could work more on th in some cases, and sometimes s sounds like z (where it shouldn't (eg "this"))
Other places long a sounds a little off, a bit too much toward a short e sound.
I could understand everthing you said.
The word "kidding" has a short vowel sound and not a long e.
You seemed to be reading a dialog written by someone who added extra ''you know" fillers. This makes the piece a bit unusual. Selection something more academic and read slower. It sounded as though you were auditioning for a sitcom rather than speaking as serious person.