Depending on how the programs you are considering evaluate candidates, you might not be as far down as you think. Many ABSN programs (not all) consider candidates holistically not just based on their undergraduate GPA. Some also tend to focus more on the pre-req GPA or the GPA of your last 60 units versus our overall GPA. My undergraduate GPA by itself isn't great, as it's just under a 3.0. However, I've been making all A's in my pre-reqs so far and I've gotten into two ABSN programs and 1 masters program.
I would honestly make a spreadsheet of all the schools you are interested in, their requirements, application deadlines, etc. so you have one centralized location for your information. That was you can easily compare the differing pre-reqs needed and figure out which ones you still need to finish before you apply. Many schools, though again not all, will let you apply if you only have a few pre-reqs in progress. This would allow you to apply to some other schools you might be interested, but not to have to complete every single pre-reqs before you apply. As far as your question about calculus versus algebra, I personally haven't had an issue with my calc classes satisfying any algebra requirements, but to be sure you should reach out to the individual programs and see if they will accept it.