Not the end all, but here is how I was taught.
Place your hook in your vice, (Im going to assume you’re right handed, Im a Lefty but I tie right handed)
The eye of your hook should face to your right if you’re looking at it left to right.
When you look at the eye of the hook take note of the inner diameter of the eye of the hook..
Take your thread and thread it through your bobbin (if you find that you break your thread often 2 things. A. spend the 10 bux for the ceramic bobbin B. put some wax on a tooth pick and swirl it around the tube for your bobbin if it aint ceramic. ) If you still snap thread, get kevlar thread, yeah
they make it.
Threaded Mode