It looks to me that you make the right decision! Generally I believe that medicines make the body do things it doesn't want to or can't do under normal circumstances. So for me at my stage, the diabetic meds help me by compensating for what my body can't do. I have always believed that statins were born out of a desire to make money for big pharma. Research has shown that statins help middle aged men who have already suffered a heart attack. Since MI is a leading cause of death, one in three people will have serious levels of furred arteries eventually. But statins only delays the progress of furred arteries and don't really help very much. They are far from the panacea doctors seem to think they are. Furred arteries are most likely a result of western diet and lifestyle. That is not enough fresh air, exercise and natural varied foods including omega-3. Giving someone a statin sort of implies it will save them from a heart attack despite western lifestyles and processed foods.
I shunned statins on day one (15 years ago) and have never taken any, so I can't say if I would suffer muscle pains, tiredness or brain fog. Best wishes for you sailing trip. I can't say I'd like to come with you - for one thing I'd never get in shape!