It is not important when will I get married, rather it is important to think whether I will be happy or not.
I think the main point is to be happy rather than to worry about when will I be getting hitched.
What is most important to me is not thinking about when will I be get married, rather I will prefer thinking whether I will be happy or not.
・・・・ではなく、。。。ですという言い方は英語で、以下のような文書で表現できます：
沖縄行くことは大事ではなく、そこで交流するのが大事ですーIt is not important to go to Okinawa, rather it is important to involve in some fruitful interaction session over there.
問題点なのは、行けるかどうかではなく、安全かどうかですーThe whole point is not whether I can go or not, rather is it safe or not.
私にとってお金ではなく、愛情がだいじですーMoney is not that important for me when it comes to love or emotions.
といった表現を使っています。
どうぞご参考までに。
インド 
