Hi Naima, I did this almost 2 years ago, also April, and really enjoyed it. Mijas is lovely and I enjoyed the excursions too, so I am sure you'll feel the same afterwards. We all know how the first trip feels. I loaded up lots of books on my Kindle just in case nobody liked me, but didn't get to read any of them as I was so busy making friends and having a good time, so try not to worry. You'll be fine and the TM will look after you, whoever you get.