I know the feeling and if I were you I wouldn't worry too much! Recently, when I had 14 hours in, I had to go nearly 10 weeks without flying due to working abroad (it happens regularly) and I was pleasantly surprised by how much I remembered. I'd gone solo before going abroad and, on returning, my usual Cessna 150 was out of action so I had to start training in the 172 instead. I went solo in that after 5 hours as well! I was surprised at how quickly it all came back to me. But don't be disappointed if your first flight isn't all that great...mine certainly wasn't!
Hope the weather stays good for your lessons
