Wrists unhinge too soon!

[Olga]

Hi guys. I'm having what they call here in England the fishing tackle swing. I release my wrists too early in the down swing which means I lose club head speed and I fat a lot of my shots. It's not too noticeable with my woods but very noticeable with my irons.

I need a drill that I can practice that will stop me releasing too early. Can anyone out there help?

Cheers

Olga