please help me with laid off and worker compensation!!!Thanks!

I work in a state university as staff with soft money over 10 years. Right now I meet a problem with my supervisor. He gave me a very bad performance （l-5, he gave me 2, unsatisfactory）on 7/17, then I battle with him, wrote my opinion, most are focused on him, attached to employee part. Then I took sick leave and vacation for almost one month. （Doctor RX is depression and hand problem and refer to special hand doctor on 8/26） On 8/2, the director of my group sent email to all of us, said funding is short and will cut off hours from full time to part time. On 8/18, I renew my vacation, supervisor denied and said I have to work. He ask me to meet him with director to discuss this thing on 8/20. Then they oral notice me will laid off me on 9/1, then I request to extend to 9/15 because I need health insurance during this period. On 8/26 director sent email to me noticed cut my hours to half, I don’t agree and ask them back to original plan to laid off me. Then director let me write I would agree laid off me on 8/27. Then he formally email to me to laid off me. After that he saw I wear splint on my hand, asked my supervisor if it is caused by work injured （they are afraid, they denied my leave request）, let me filled injured report, I have not filled because I take sick leave at home.

When I meet with supervisor and director on 8/20, request take annual leave on 8/23-8/25 because my hand’s problem and they denied, said I have to work. This made my hand’s problem more badly. My doctor ask what’s my job and said avoid current job. Can I 告my supervisor because he denied my leave and made my hand worse to get worker compensation? 我就是覺得他太欺負人了。

very appreciate for your advise!!!!!!!!!!!!!!!!