I tried to make a wand
For example
/wand create
/wand name
/wand add (spel)
But when I click right or left, it doesn't open the magic store and when I use magic, what should I do next?

Try /wand configure inherit base_wand

I'm not entirely sure that'll work, but basically if you're trying to make something that works like the survival wand you will need to configure a lot more stuff. Key bindings, enchantment table behavior, mana functionality, etc- all of these things are something you have to set up.

If you're just trying to get and use a wand, just do /mgive wand and use the built-in one.

If you want to make your own custom wand, it's much easier to use the editor and start with one of the premade templates. Try /meditor wand mywand for that.