confusion in option rules

hello all friend in trederji forum.I am akhil and my traderji user name is `online trader`.I am just two year old in share market.so my experience is not countable.but I feel the share market is good way to make money.if we have following some rules of discipline we make sure money in share market. my investment in share market is some fundamentally and technicality good stock. I am also invest some money is future market. I am interested in option market but there are some confusion in my mind. If I buy call and put both are strike price.In the expiry both are almost nil if i don't write what amount credit or debit in my account. friends plz solve my confusion.