Should I reach out to my uncle?

Recently I found out his number by looking at my other uncles phone number. He lives in the same country and my dad and him had an argument over their moms will that was all a misunderstanding and equally split into 3. The uncle that is in between both doesn't share both sides which is kind of sad.

Should I reach out? After 15 years, I'm turning 17 in 2025, should I contact him on whatsapp? What should I say? Not sure about astrology but pisces life says a person will enter my life and he's a gemini?

Pls ANSWER HELPPP 😭😭 getting less sleep because I can't stop thinking of what he would say