BCN reservations needed for 13 December?

I am going to barcelona the 13 of december and was wondering if this is considered high tourist season because of the holidays? do i need to make reservations at the hostals? do i need to buy train tickets in advance? it's been a while since i have travelled in spain and i would appreciate any help. gracias-la capoeistra

I will take care of any potential headaches that might happen on my trip before I leave my trip. Finding a place to stay is one could be a headache for me. If you are sure you are going to Barcelona, I say make your reservations before hand.

At least you will have the time to find a place at the price you want and also some recommendations.

Bill