Can I still sue if I got injured in a hotel public bathroom about 4 years ago and my head still hurts every now and then?

I walked into the bathroom and each bathroom stall has their own thick glass door. Well, when I opened the stall door, it chattered completely cutting me and just hit my head. I had glass in the top of my head. The employee who was in the bathroom yelled at me as if it were my fault. Women in the bathroom ran to my care and told her to stop yelling at me, that it was her responsibility to inform that the bathroom stall glass door was broken. There was no sign or anything. Security of the hotel came and helped me, putting band aid and made a report. Two days later, I went to a lawyer and he did nothing. But about 4 years have already gone by and still I feel as if I have glass stuck in my head and it's painful.