Motorways are safer, than normal roads, but they are also faster. Sometimes things do happen quicker, and you have to concentrate. When you are on the main carriageway of the motorway, remain in the first lane until you get used to the speed.
Many motorists try to stay in the overtaking lanes for normal driving.
This is bad practice and causes inconvenience and tailbacks and annoys other users. There are two types of motorway, rural and urban. You need to think of them as quiet and busy. Quiet motorways are boring, so you need to concentrate on the road and traffic conditions way ahead. Busy motorways need your attention all around you rather than just focused ahead.