Wasting time?

I feel I’m wasting my time. All the time I’m praying for my future family, writing to my future children, praying for a husband. But I’m only seventeen. I feel I’m wasting my time because I know that if this should be the Lord will make it happen and because he’s not the time must be wrong and I accept that but it’s all I can think of every day. Has anybody else ever felt this way? How did you overcome it because I feel I’m wasting time where I could be enjoying my life but I’m just finding it hard at the moment.