Can the Statute of Limitations be waived is there has been 'continuous malice and retaliation over a number of years to an employee?

I was appointed to a senior position in higher education in NC 25 years ago. I was terminated while on leave of absence (without my resignation 23 years ago) I have re-applied four times for this position which was granted me with permanent tenure but have been denied each time. I have won 8 of 9 grievances filed at my university and was recently rejected for the 4th time. I am 72 and the person offered the position is 34. I have filed a "Pro Se" lawsuit but I need legal help.