Translation of alentar

I hope you could understand my last letter to you. You see, when I write in Spanish I am not very confident. I always question myself and each and every sentence takes about fifteen minutes.
Nevertheless I think that we need to communicate. All in all, we will learn a lot from each other, mostly by writing, but speaking exercises are also really good for your Spanish skills. Is this OK?
The fans in the stadium was so much better than any fans in Europe. The atmosphere was pure football and people did not stop singing for ninety minutes regardless of the score. Outside the stadium there was smell of Asado.