Translation of tactfulness in German

I know it is a little confusing. The problem is if the original word is a conjugated verb: I skipped them until now. I did not write it in my explanations. It actually must be skipped. Thanks for noticing.
Anyway, there are a lot of people on board and I no matter how high the waves may be, I always suffer from nausea or seasickness. I have not been on a small boat before. I will have to vomit.
Your English seems to be good. Can I meet you? I made a German language course, but my vocabulary is very limited. Unfortunately I do not speak German well, but I'll give my best.