I'm 17 and in Ged classes. I want to go to college and major in criminal justice. I've always wanted to become a police office, but with my record I feel as though I will be unable to persue this dream.
I have the following on my record.
Millicious destruction, which was put on my record when I was around 12 years old.
Two Assult and Battries which I recieved probation for both when I was sixteen.
Gross Indecency which I just recieved this year.
When I turn 18 all of these will be removed from my record. My question is, am I still eligible to become a police officer?

Maybe, but you'd better straighten up now You might have to wait quite a few years though

I was hoping to go to college for four years then the police acamdey. I was thinking that it could take me six years or longer to even apply.

That might be long enough in your case. Those charges as an adult would eliminate you with many departments.