My husband is 4 years older than me,he mature enough in compare to me I think that's y we have different views On every topic and certain times we start fighting,is this true that age gap matters in Husband wife relationship

Yes, I think age gap does matter. I will not endorse the idea that maturity comes with age but age gap definitely matters. If you are younger to your husband and the age gap is more than 4 or 5 years then your likes, preferences all change. And this affects more as we age. Because generally with age we are low on physical energy and lack enthusiasm to do things. I suggest, if your husband is the sorts who won't change and is adamant on things then it is better not to argue with him. If you feel like doing something, you go ahead with your friends or other family members, and do not discuss at length the topics where you know friction would arise. This will be quite mature of you, if you act this way. Else, talk to your husband and make him understand that just because he is elder to you doesn't make him right all the time.