How to face this Bishop sacrifice play

I'm quite ashamed losing like this...

How to tackle this..Can someone analyse this..

My king's position from bad to worse

After 2....Bc5 there's a few things you could have done to protect the f2 pawn. e4 supports the d5 pawn but does nothing for f2.

If it was me and I was at 2.....Bc5 I might play Qe2 or Be3 or just e3

Well, when you played 5.Ke3 you should have in mind that in the opening it's good to develop your pieces. However, your king is definitely not included in them... 

And of course, there was no need to protect f2. The bishop sacrifice is one hundred percent unsound/losing, provided that it's not made against people who like developing their kings!

I don't understand why did you resign in final position...

8. Ke2 and black can't defend his queen and knight at once:

a) 8. ... Nxd1 9. Nxh4 +- (white is piece up and black knight is trapped on d1)

b) 8. ... Qxe4+ 9. Kxf2 +- (white is two pieces up, pawns do not count anymore)

Thanks everyone for good input...
 Yes maybe i'm too pessimist and losing faith too much..

True, the final position is totally winning for white... but earlier, Black could stir some trouble by, say, 6...Qxe4+, when Black may not have enough for a piece, but it's still a game. So, no need for bravery Ke3-alike...

It is difficult to win slowly when you are a piece up with the better development! 

Factly, white may even play (instead of 6.Nf3) the move 6.Nc3, when Black loses her majesty after 6...Qxh1? 7.h3 etc.