Kimball Data Modeling cookbook

I have a table full of columns and no idea what should be a fact and what should be a dimension.

My fact table has ten flag columns for gift, rush, and taxable, and I don't know if that's normal.

My orders table has three date columns and every report I write has to guess which one the user means.

A customer upgrades their plan and suddenly every past order looks like it always belonged to the new plan.

One customer should show five hundred dollars in orders and my query says fifteen hundred, and the raw data is right.

A sale comes in before the customer record does, and my fact table has nowhere to point the foreign key.

Support keeps asking how long orders sit at each stage and I only have separate event rows to answer with.