You use had had (Past Perfect) when you talk about a action that happened before other action in the past. For example "If I had had the opportunities that you had, I wouldn't have made that mistake" Generally used with words like after, before, when. I think that you don´t use have have. And have had is present perfect. You use it to say that an action began in the past, but you don´t know exactly when, and it´s still happening now. For example: I have had a flu lately Generally used with words like since, for, lately, recently. I really hope it helped.

I think you should stop guessing or just throwing words around. have had = present perfect had had = past perfect You need to learn this stuff yourself.