how durable is the screen of lg optimus one? need help

[landzmaster]

Just bought this phone a week ago and this phone is my precious. Last week, I accidentally dropped my usb and hit the screen of my lg op one and i was going crazy thinkin about what might happen on the screen cause they say that touchphones are very fragile specially the screen. . thank god nothing happened. . And now, my fat sister just sat on my phone for about 20 to 30 seconds i think, and thanks to her i cant eat, cant think of other things except my phone. All i thnk about is what will or might happen to my phone's screen. . I felt like im frodo and my precious was destroyed . . Can anyone please tell me if my lg optimus one will be alright or not? As of right now, my phone is ok and works fine. . Im going apeshat bout it. . Any comments are kindly appreciated. Thanks. .