Congratulations on achieving your licence, being rated on the 44 you can take three passengers so enjoy, helilanes would be great experience and if the wallet will stretch take a trip overseas, northern France for example. The French are very pro friendly to Helis.
If you do the heli lanes take an instructor for the first trip and once you do it yourself make sure any passengers you have take plenty of photos, along the Thames and over Heathrow it is sure to impress family and friends.
Advice from your school of where to visit and practise confined areas will hone your skills, remember how your driving skills had developed after 6-12 months, flying is not much different, just much more heavier on the wallet, so enjoy.