Hello Ardmore,
Not sure if this option is available to you, but I am in a program that offers independent learning courses (ILC), where the work is done at your own pace. I am currently taking two courses right now, and even though I won't finish both of them by the end of the semester, I am allowed to carry them over into the next semester, and take both semesters to finish! They will be labelled as credit recovery courses, but generally post-secondary institutions don't care if they are labelled as such.
I like the fact that I get to go at my own pace, without the pressure of deadlines. It actually makes me work HARDER than if I had been in a regular high school, with the pressure of deadlines. I do most of my work on paper, but sometimes on the computer too.
I almost forgot to mention, you also get to choose how often you attend the school. This is because many of the students have conflicting work schedules, are parents, etc. I only go one every two weeks, usually, and do most of my work from home. As long as I check in with the teachers on a regular basis, they don't mind.
I wonder if this might be an option for you? I hope you find something that works!