If an intersection then you are not allowed to enter it if you can not clear your way through.

If on a roundabout you should not enter a roundabout if you block the traffic comming from the left if they are already on the roundabout.

Seems to me that you may be able to drive a car but you need alot more experience to learn the rules and art of road craft.

or

I could have completely misinterpreted your entire post.