Why is everything so expensive?

I currently have £5.98 to my name.

I want to go to the gym, this will leave me with 98p till July.

I want to go to London and draw some things in the natural history museum. This will leave me with - £10.02.

I want to go and see prince of Persia. If I go on Wednesday I may manage it, but I can't be sure.

Honestlyyy.