Translation of frail in German

It was after midnight when we finally could go to bed and rest a little. It was good that the search for a better room turned out to be funny and amuzing so that we did not feel sorry about it.
I am learning Spanish in university but I also have to improve it for private reasons. Do you have any suggestions. It is giving me a hard time lately as it is difficult. I need to be very patient.
The bus left on time to the border town Tacna. Crossing the border was also an experience. We needed to show our passports about seven or eight times and were checked for goods three times.