My Sob Story (not really)

So just recently in late April I (17M) went into the cardiologist for the first time in over a decade. I knew I had a Bicuspid Aortic Valve but I have felt fine all these years (I know I'm pretty stupid), so I hadn't really considered it a factor in my life and went on business as usual, weight lifting (Very stupid of me), and generally living my life. Well turns out my BAV had worsened since I was six, it now can't open/close all the way, causing excess strain, heart murmurs, and all the fun stuff that I forgot the name of that comes with it. But what I've gathered is that I'll be having a ross procedure done so it can grow with me and all that.

Surgery Questions

- First off, literally anything I should know going into surgery, mistakes I should avoid, things to do, anything you think you would have liked to know

- Secondly, I'm going to admit Im kinda scared. My cardiologist did not seem thrilled giving me this diagnosis and one of the nurses started crying so I'm sort of freaking out. Im not looking for internet sympathy points but any comforting facts would be nice. Im sure all will go well, my family has insurance and the hospital is allegedly good at pediatric cardiology.

Employment

As I'm still in high-school I'm looking for jobs, and I have been dead set on joining my local fire department and working as a Firefighter or EMT/Paramedic. Now considering these are 3 of the 6 jobs google deemed as hard on the heart my plans have been turned upside down.

I know that according to official documents the Ross procedure is not a disqualifier but I have to be cleared by a doctor and be able to do the job.

If anyone has any input on jobs like this or for how to make this work given my surgery goes good and the graft takes well.

I have yet to talk with my surgeon and doctor again and I feel silly for going to reddit but I just need to talk about it even if it is to the void. Sorry if this is wordy or doesn't fit the sub-reddit well, I've been lurking for a while but never posted.