First of all I'm sorry you lost such a large sum of money. There is not much you can do now. I tried to find the website of the exchange you mention, there is no notice of it. On reddit, this link: https://www.reddit.com/r/btc/comments/agy8qn/the_cryptoestocom_scam/ there are reports about this fake exchange and their scumming people with malware infected downloads. Your experience is another reminder why we should never trust even the closest friends when it comes to investments and finances.