BARCELONA - Budget? Clubs? Pre pay with promoters?

Hi,

I’m travelling with a friend to Barcelona this August (early) for a couple days and I have a couple of questions.

How much should we budget a day for food and regular activities (beach entry etc..). I’ve seen people reccomendkng anywhere from €20-€200. Bear in mind we don’t plan to eat in restaurant but to eat from supermarkets and occasionally buy a coffee.

Also we are both interested in going out to clubs. Should we pre book with promoters or just pay for entry when we get there on the day. (How much roughly is a club entry). We are 2 19F so we are looking for clubs that have a good young demographic. (We have messaged some club promoters but I’m not sure if they are just lying to us to sell tickets)

Any advice or suggestions would be amazing thank you!