I have a significant amount of credit card and medical debt (in excess of $20,000) and am planning on filing bankruptcy. I have a car loan that I am planning on reaffirming in Chapter 7 bankruptcy, and am also in the process of getting a personal loan with a co-signer to make some needed repairs to my vehicle. I would like to keep paying the personal loan (essentially reaffirm it so it is unaffected by the bankruptcy) and continue paying it back as scheduled. Is this a viable option for me? Or am I required to discharge the personal loan as a debt?

You are not required to include it as part of the bankruptcy writeoff. You will need to talk to your lawyer about what is needed for notification and if there are objections that could be made.