It is for me. I've been suicidal for 8 years nearly, and my suicidal ideation increased drastically nearly 5 years ago.
During every bit of time where I came closest to CTB, I would get extremely nervous, and also quite flustered. Just like you said, I struggled, and still struggle, with letting go of the expectations I had for my life. To keep it short, I was 17 when things got bad, and 20 when things got really bad. I feel that I was just starting my life, and up until those points, I quite frankly didn't have any issue with living. I enjoyed most days actually.
It's hard for me to let go that I once felt that life was worth living. It's something I miss dearly, and for whatever reason some part must desperately be trying to hold on dearly to the idea that it will one day return (or else I wouldn't have these issues, i would just be able to go!).
I'm currently trying to deal with this by taking a hard look into my recent past and how things have not been good for so long. I really want to move on in my life too, and I'm pretty certain that the only way will be to CTB.