Do you still have a "Provisional" License? According to this from the CA DMV,
When you become 18 years old, the "provisional" part of your driver license ends. You may keep your provisional photo license or pay a fee for a duplicate driver license without the word "provisional."
Yes. The restriction is canceled the instant you turn 18.
https://www.dmv.ca.gov/portal/dmv/?1dmy&...
" Provisional driver license restrictions during the first year....
When you turn 18 years of age, the provisional part of your license ends. "
I am concerned as to your logic. Why not go to the DMV's website and find out from authorized sources? Children of the smartphone have a slow brain development because it looks like they text about everything. Do allow your brain to evolved. STOP USING THE SMARTPHONE.
most states have a law against it bet you can find info on the DMV website