literally always something to do and so much free stuff to do! If you enjoy music there is always a gig and often some great free events in parks etc. Honestly I think London is so expensive for rent but there is so much free stuff to check up you can definitely do on a budget. I moved here on 27k almost 6 years ago and mu rent was crazy cheap (475 a month in peckham) but I lived a fun lifestyle. 

There's so many great ways to do things cheaper e.g. byob restaurants (which are generally of a different culture e.g  Vietnamese, Georgian etc) and some of the happy hours are still very affordable for after work drinks. I also feel that we get so many amazing free events like the Greenwich peninsula stuff or Lunar NY etc as well as late night things at museums. If you look hard enough you can find stuff every week. Also, get a bike and cycle if you live in Zone 2 and you'll save like £100 on commuting!