Do you eat fish regularly? What type?
I do not / don't eat fish regularly because it is very difficult to prepare, I could never do it / I never succeed doing it.
Very good work, all correct! You can get it oven-ready in the fishmongers or shops here, is that not possible where you live? :-)
ps I would add an 'and' before 'I could never do it'
Yes, it is true, but I like fish prepared at home. I only eat fish when I visit my parents twice a year.