Need some input about pressing charges against someone

[C's 94 InTeGrA]

ok well like 2 months ago my car got egged and i didnt make it in time to get it washed off but after i did it ate right through my paint job... well tonight i finally have 2 sources that confirm this girl and her b/f did it.. they was bragging about it to people and one happened to be a friend of mine. and one girl was with them the night they did it and she was the one who told my friend. so do u think i could report it and might it be too late???? cause i got enough to convict her and her b/f so wat should i do???