Im so scared!!! 😯

So ive known for a few years now that i have a cyst on my right ovary. But last week i just found out it is a endometriosis chocolate cyst. My doctor whats to give me a tubal flush, its similar like a d&c and while im under also have my cyst removed. Ive never had Surgery and ive never been put to sleep. Had anyone had any of this done before and have any tips or advise for me?