please quick grammar check

Dear Coaches,
Please correct the grammar errors? Thanks.

Nothing stays the same forever. Any thing that has a start must have an end. A new one becomes old. We begin any thing to make it end. A film starts and comes to an end some time later. The moment a child starts breathing he starts dying. We’ve seen births and seen deaths. We know that one day, sooner or later, we die. But we don’t talk much about it because we are afraid of death. No body wants to die although we know that no body lives forever. Nothing is eternal. Everything that has beginning must have an end.

Thanks
Noren

##This one too##

Joys end in sorrows, happiness ends in sadness, young love ends in old love, construction ends in destruction etc. This young earth had a beginning (was created) and it will come to an end (will be destroyed). But when? No body can tell us the exact time of its ending. However, we can only guess, make assumptions about the end of the world. What I want to say here is that: this earth will surely come to an end, will be destroyed by the one who created it. Though there is no telling what the future holds for us, I predict (using all the resources, assumptions, intuitions) that this earth will come to an end in one hundred fifty years from now.

Thanks

Noren

##Again this one too##3

Don’t regret the past. Don’t worry about the future. Don’t spoil the present with these thoughts. Live in the present happily. Since you are alive, have fun as much as you can. Have you ever seen a dead body saying “Good Bye, see you in a world of the dead” before his burial or cremation? 100% No.
So while you are alive, enjoy living for today only because tomorrow is another day. Tomorrow comes, but it never arrives.