I am so very not a lawyer, but I'm bored and was able to do a little reading, the results of which you should absolutely not take as any kind of legal advice:
You can find the California Vehicle Code
here. As the law reads,
California takes unlicensed driving very seriously.
All the assorted insurance-related violations are infractions, but your unlicensed driving violation is probably of section 12500(a), which
is a misdemeanor. Unless there is another specific section I have not found, the
General Misdemeanors section specifies "a fine of not exceeding one thousand dollars ($1,000) or by imprisonment in the county jail for not exceeding six months, or by both such fine and imprisonment."
Since you are a juvenile, those penalties should not apply to you. It looks like you would face a
juvenile hearing, which gives the judge
a few options, which may be a wag of the finger, or may include restricting your ability to get a license, community service or paying up to the full fine for the adult charge. Restitution for the damage done may be ordered in place of the fine.
If one or both of your parents knew you were driving the car illegally, they may face
legal liability as well.
One important thing to note is that if you do it again, the vehicle could be
subject to forfeiture, meaning the cops just take the car away forever. In that case you will be legally liable for the value of that car to its owner.
The court will notify you if this offense counts towards possible forfeiture.
When you say "no insurance" do you mean the car was actually uninsured or you personally did not have proof of insurance? Generally car insurance covers a car, not a person, so if the car was actually insured, the damages might be covered, but I really have no idea how that might play out. You might well end up in civil court with the other driver over the damages.
As far as the cost, hitting a car on a corner is going to be more expensive, because it damages lights and two different body areas. Both the bumper and the fender body panels will have to be attended to. The bumper might have to be replaced, but the body shop will need to inspect it first. I wouldn't be surprised at all to see that damage hit $2000 or more. For a '94 Accord, there's a slim chance you totaled it, just because of the
low value of the car.