Learning mold design well is not a one-off event. There is a lot of training now, most of which are only computers, but there is no practical training, and the teaching quality is uneven. In this case, it is not very helpful to employment. If you really want to learn technology, it is not too far. You can go to Tianyi Mold Design Training School, where theory and practice are combined. They have their own training workshop, which is ideal for those who want to learn, especially those who have never been exposed to molds before.