If you can go up in a Cessna with a high wing, rather than a Piper with a low wing, then you'll see a lot more. Flying at night won't happen until you have done 10 hours, but even then you have to do a Night Time Rating when you have passed your PPL to be able to fly on your own when dark.
Can I also suggest to get a "Pilots Flying Log Book" - then you can make your 3 hours count towards your 45 hour total!!
Just had a look in mine, I have done 16.75 hours - 10 from Inverness, 6.75 from Shoreham - last flight being from Inverness on 10/09/2006 lol!!!