Yes.
My childhood wasn't great but I got through it. I don't have a debilitating illness. I can function in social situations. I've had good jobs. I do have a mild form of depression, but it's manageable and doesn't affect my life that much.
I feel like a bit of a fraud being here, seeing all the pain and suffering of others with valid reasons to want/need to take their own lives, and here I am only through choice.
I made a decision many years ago that I didn't want to grow old. Over the past 10 years or so, I've been waiting for my money to run out, and through a combination of apathy and procrastination, I've avoided looking for work. That time is now here, and I'm having regrets, but that was the whole point of the plan - to put myself in this situation so I couldn't back out.
Is choosing to die the same as being suicidal? I don't know, but here I am.