Hey Mike, I'm on the run and no time to listen but i did want to say hang in there. It takes time to build muscles in order to narrow the glottis on the highs so the voice stays full and doesn't flip to falsetto. Keep doing all three Isolation exercises in order and keep singing those high songs and over time you'll eventually be able to maintain a full voice tone;)

Hi Jaime
Thank you very much for responding and your time. It's great to be here! I'm still working on grit and tone production. I will practice as hard as i can.
Cheers!
Mike

Hey Mike, first off, nice job! For a beginner you are attempting some high notes don't be too hard on yourself singing takes time and proper practice.

As to your question of whether or not it will hurt your throat to scream like you are, let me ask, does it hurt you? you should not be feeling any pain while adding grit.

what seems to be happening in both clips, on the high notes you are losing vocal chord compression and slipping into a lighter coordination which is not really what you are going for stylistically. Adding in more of a cry into the note to hold the chord compression may help you to keep the chords together stronger or your chords just may need some more time developing the strength to hold back such a high velocity of air.

hope that helps a little, just my two cents

Hi highriser!
Thank you so much for your tips! As you said before I will try to add more cry;) Maybe with time I will develop more strenght. Hope my neighbours won't kill me in the meantime..