Can your record still be sealed if you are 18 years old

Where and for what?

Ocean county n.j
Third degree theft, possession of stolen items and having stolen items on vehicle, stolen item was worth $600.
It's a first offense

If you received these charges after you were 18, and there was no plea agreement and no first offender program agreeing to seal them or dismiss them after a certain amount of probation, then no.

Any deal to dismiss or explunge any record would have to be done prior to the sentence.

You can after a number of years ( normally 8) ask the court to seal them after you show a clean record and show you have changed your life