The lyrics are in public in this site, and the unclear parts has become clear now.
LINK
(Line 8 & 29) Henka o osoreru no nara
If you are afraid of changes
(Line 25) Unmei demo shukumei demo
Even if it's destiny or fate
And I feel like changing the translation of line 12 (Aru ga mama ni) to "Let it be" or "I let it go". How do you think about it?