Norwegian roads are among the safest in the world - compare international accident statistics.
But note these roads are small country roads not highways.
Please update your profile with location as that helps with specific advice.
It can be dangerous in winter if you are an inexperienced winter driver.
Very safe despite the impression. Roads are mostly two-lane undivided, usually with no shoulder. Many tunnels and cliffs, some narrow and curves, are unusual for many visitors, just take it easy and observe speed limits, and you will be fine.
Speed limit is generally 80 kmh, but often lower, traffic is often slower because of curves etc
Thanks all for your tips
I am more confident to drive there now
They drive on the right side just like US right ?