I am a 19 year old woman traveling alone in Barcelona: safety advice?

[soccergirl2009]

I am blond, blue eyes, 6 ft and thin, and in my past traveling experiences attract a lot of unwanted attention from men. What should I know before going to Barcelona, how do women generally dress, and is there a real risk for my safety?

 

[comeovaheremaria]

bring pepper spray lol