That depends on whether you have a good reason to discharge the student loan. You need to be disabled, which is defined differently by different judges, and often means unable to work at any job.
You should see a lawyer in your area.
You can reopen the case but in order to discharge student loan debt you have to have some pretty compelling circumstances. You may want to go talk to an attorney and see if it is worth it. If you have the ability to earn money the debt probably will not be allowed to be discharged.
You can make a notion to reopen the case and file an adversary proceeding. The amount of proof to sustain the burden on winning a proceeding to discharge student loans is very high.