Life / Work and Life in Krakow [11]

Hello everyone, I have just moved in and I feel I made a big mistake :( My mind is filled with concerns and I would hope you could clarify some things for me.

I am going to earn about 4700 zl per month after tax. The only apartment I have found is about 2600 zl per month including the payments, though I haven't signed a contract yet (Could I cancel it?).This leaves me with 2100 zl per month...are they enough for a decent life here in Krakow? Could I make it on my own?

Also my apartment has advance payments for water and gas but I was told that it depends on the meters. How much do they cost in the end?

Thank you and I'm sorry for the long post.