Translation of can in Spanish

I've got a question. What is a woodpecker? I learn English without teacher and without conversation. I think you should look on the bright side. See what do you already know and to be proud of.
Nevertheless, I agreed to go there and check it out. It looked much better than the one that we booked in advance and we decided to stay there for two nights. It had a great pool and we were welcomed with drinks.
I think I have to switch back to English. It will take me two years until I write an entire letter in German and I suppose I do not have the time for it. Does that mean that I am not serious about learning?