How long does a juvinell in fla. get for asult with a deadly weapon under these circumstancesr?

I got arrested once before but it was exponged couse I did the one time teen court thing in Fla on my record it says I'm affiliated with gangs with my picture and I have overdose on my record I'm 13 I put a knife to a kids Troat and made him say sorry for calling me in *** hole then I left and they ended up identifying me and now I have papers in the mail with a court date and it says I've been charged for agravated asult with a deadly weapon and it says stuff AB probation and court am I gonna get arested