My only advice is to not limit yourself... By applying to only one program, you limited yourself - and that hasn't worked out all that well. For this upcoming year - investigate private universities, outside your comfort zone, that fit your academic needs. A healthy number is 5 programs...
Do a search for "How to improve my chances" - as there are several excellent threads on the subject.
Good luck to you - and if you ever need any help - utilize this board as a resource... keep us posted on your progress.
If you think you know who wrote the poor LOR, don't go to them for another one.
Beyond that, you've got a year to get work experience, ECs, improve grades, etc. Work on what you think was your greatest deficiency.
Another thing you might consider is public schools outside Ohio that grant residency status to students after one year of school. You will pay out-of-state tuition in your first year, but subsequent years will be cheaper. I don't know of any, but I wish I had.