This sucks, I think if you used the genuine URL you will be OK. My concern is that you sent your BTC to a phishing URL (please say it was the genuine website).
Is your computer/device free of malware? Lots of people get scammed by downloading malware which changes certain characters of the receiving bitcoin address to an address connected to them.
I really wish you the best because it’s a lot of money.
100% free of malware, did a malware scan. Also I know for a fact I wasn't phished because after my wifi cut out I refreshed the page and was back on the secure version of mycryptomixer.com where I was able to find the email address to which mcm has responded claiming the address does not belong to him.