Hell and Heaven - Who eat chili he shall hot!

Siapa makan chili dia akan berasa pedas, semua yang menanam pasti akan menuai. this adage mean that whoever put a good deed he deserve to praise and bless and vice versa. who make evil he shall get the taste of pain and could not escape from hades (what is hades? --> it mean hell). But how about the hadist that say Every born baby is already destined his destiny and destined wher he will go after die. Even somene do a good deed in his life but his destiny is hell then he will make mistake and he'll thrown to hades! And even someone did a bad deed in his life, but his destined to heaven then in the end story of his life he'll turn to be a good man as way to paradise! Suddenly there is one of prophet shohabat (prophet friend) ask to prophet. So what use we do a good thing if hell and heaven already writen for each of us? to be continue... you must be wonder about what prophet answer for that critical question? so do I, sorry I am forget the answer and I'll be back again in next post.