Xaby,
You said in one post that you would find it a financial hardship to retake the entire course. You might check out any local volunteer rescue squads who would be willing to pay for your training if you join the company.
Our company is strictly volunteer, and we pay for any member who takes classes, excluding the Paramedic qualification. All books, materials are paid for by our squad, and the member becomes a volunteer, takes time on the duty roster, etc. It's great experience, as you get to go on calls, become familiar with the rigs, get qualified to drive, learn the communications system, etc. while you're training. Plus, you're giving to the community, and that REALLY feels good.
Check into it, if you think it might be for you, and best of luck with everything!
Lin57EMT