Attics are supposed to be almost the same temperature as the outside air.
Your water dripping issue was almost certainly from condensation. The tubing leading from your ceiling fan through the attic to your roof needs to be insulated. Yours is, but it may need checking to make sure there are no open gaps. Hot moist air from your bathroom meeting the colder air in the attic is causing the condensation.
No point in insulating the ceiling of your attic. Air is supposed to circulate from your soffits along the lower edge of your roof line, through your attic and out through the whirly birds on the top of your roof.
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