Hi Emma,
Dont worry, you will have a great time. I sent another message to someone who is going in March and you may see my glowing opinion of this trip.
Mijas is such a beautiful place and the Hotel Mijas is great.
Every-one is in the same boat and you need never be on your own unless you wish to.
I'm sure that like most of us, you will be looking to book another JY holiday after you return.
Best wishes
Maria