Do I need a lawyer for Notice of Hearing in Removal Proceedings

I am student, currently on F-1 Visa. two semesters ago, I went of my status because I was not registered in school. During that time, the DHS wanted to remove me, and therefore filed a case for me to answer in court. I have since gone back to school, I applied for reinstatement which was granted by USCIS, but I still have to appear in court, for a date had been set for, way before I applied for reinstatement. My question is: Do I still need a lawyer to represent me on Notice to Appear, scheduled for February, or I can go in by myself and present my reinstatement document to have the case dismissed? If my status has been changed, and is now legally allowed to be in the country for the duration of my study, as stated in the I-94 form, does this correct any of my past mistakes that would culminate in the dismisal of my case? Am I at risk of still being removed from the country, even with my reistatement status? Thank you in advance for your answers