Why did Hitler commit suicide?

Like all dictators, he was a loser that hid behind the lines all the time, that allowed his troops to commit atrocious crimes against humanity on innocent people in the name of some fictional superior race n purity of German people.
He took the cowards way out by committing suicide cos scared being taken by allies n what they would do to him, still the 'little corporal' to the end n not some brave fearless leader.
Did best thing in doing so, saved wasting a bullet on him or having to keep him locked up for years!😡