mashaaAllah you have spoken the truth sister. Indeed, we all sin, but the best of those of us who sin 1] keep it private, 2] make sincere tawbah to Allah, beg for his forgiveness, and never go back to that sin, or those sins. Allah hid that brother's sin, yet he decided to expose it, thus leaving the cover of Allah, subhanAllah.
The one who seeks to be chaste, Allah will aid him/her.
The one who seeks to be patient, Allah will aid him/her.
This is a promise from our lord, we just have to put in our best efforts.