Hello there @jillywilly123, and a warm welcome to Mayo Clinic Connect.
I like your online name...it sounds happy 🙂

September 8 is right around the corner...no wonder you are anxious and dreading it!!!
I was too, and remember oh so well the feelings of dread, doom, and despair.
Like a condemned prison going to the gallows! Getting my "affairs in order" was a real eye opener.

Much to my surprise, yes, it was rough, and yes, it was tough, but it was much less painful and horrible than my imagination had conjured up.
Our minds are very powerful and our thoughts can be used to help us, instead of hurt us.
Chose positive thoughts.

I hope you have had a chance to read the numerous posts here on Connect about open heart surgery/septal myectomy.
Knowing what lies ahead can be beneficial to some, and others chose to go in like a blank slate.
We each are so different.
I wanted to know everything I could about what was going to happen. I even watched numerous times, a YouTube video of a septal myectomy.
I have worked in hospitals for decades, so I was not put off by watching.
It's rather fascinating!

Have you made a list of things to ask?
Do you have any questions of your fellow HOCM members who have had this surgery?
Will you have support after surgery to help you?