Just a little mistake

fast sleep

because asleep is adjective
Are you sure about that? , I mean always knew it as fast asleep as a whole,so I don't think that even if it's an adjective, it would matter in that context

What will be hapened it is going to hapen and when does happen we will face it.
yeah, it's okay , and also "does happen" is a smart choice here

but I think we can summarize it a little bit, so it would be like that

What will happen will happen, and we'll face when it happen



كان الهدوء يعم المكان، لكن فجأة سمعنا صوت تكسّر الزجاج.
It was all quiet , but suddenly we heard the glass crashing

?Is that right

Now Mine

فى العجله الندامه و فى التأنى السلامه