Feel free to have a go in another type. The important point is to learn about reading pilot operating handbooks and following them. POH developed out of the pilot notes produced for Air Transport Auxiliary pilots in the second world war. These pilots, mostly women, were able to fly anything from Spitfire to Stirling simply by climbing aboard and following the script.
It'll be good experience as part of your training. I flew warrior and 172 interchangeably during my training though I've never flown a 152 I admit.