People of all religions?? christians pls answer?

ok i have read the bible many times....it sets down certain laws to be followed....how do u follow these laws in this day and age?? example...the bible does say that a woman is not to speak in church or in public...and if the woman wishes to know something she can learn it at home from her husband.....how do u stick to this and the other laws??? and if u do not follow them exact r u still considering urself a christian?? do u think u will still go to heaven?? do u think that as long as u believe in 1 tru god and that jesus died for our sins u will still go to heaven??