Hi dupa,
Welcome to Microsoft Q&A forum. I'm happy to help.
Regarding your information, your mouse may have hardware issue. Double-click is very common on regular mice that use traditional switch.
If you like your mouse, you may send it to a repair shop, they will replace its switch within some minutes. It's an easy task but it needs specific tools to do so, like solder tools.
Nowadays they have mice with optical switches or magnetic switches. They're contactless switches and in theory they almost never have double-click issue. If you're willing to replace your mouse with another one, you can consider them.
I hope that above information is helpful to you.