I'm only a few years older than you and have ischaemic cv disease (blocked arteries). It's a common problem in people twice my age. I thought I ate well and exercised regularly but it turns out that stuff doesn't help that much if you lost the genetic lottery like me.
I had a heart attack this year, while my partner was pregnant with our first children. Yes 2x kids. They were born a few months ago.
IDK if I have 2 years or 20 years to do my best for them... but fuck it's a bitter pill.
I absolutely get the dread / fear / anger.
Every time I have a new blood test that shows I'm more fucked than I hoped it just... hurts.