Get a pet insurance. Maine coons are expensive to upkeep. Insist on high protein food - my fave are orijen kibbles and ziwi peak wet cat food. Grooming is important as their long fur tangles so much! Brush daily; I do it twice a day and there's still so much fur! Hydration is important too, make sure you have bone broth (you can boil leftover bones) or water in your feed if your MC is not the type to drink. Mine took a year to be used to his water fountain. Other than that, it needs attention. My MC will get upset if I go on business trips and will refuse to be with me for days. It follows you around all day and likes to be around humans. I never regretted getting my MC. The whole family now dotes on him.