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So don't worry so much about how to use  had had  as a unit of grammar, they will come together naturally when you want to express the verb ' to have ' in the past perfect. Let's consider a different verb for a moment like  to want .
with the present perfect tense we can use both been and gone been is the past participle of be gone is the past participle of go use been to describe completed visits if you have visited a place on holiday and then returned you have been thereif someone visits a place but has not come home they have gone thereshe s been to india on holiday three timesith the present perfect tense we can use both been and gone been is the past participle of be gone is the past participle of go use been to describe completed visits if you have visited a place on holiday and then returned you have been there