How was you first experience on the motorway Watch
Im just so worried if no one lets me on or do people generally allow people leave a gap for people to join on ??
Generally when i'm approaching an onramp point on a motorway/dual carriageway ill move to the right out of the left lane to give space assuming it's safe to do so.
Only get up to speed when you've located a gap, if there's heavy traffic and not safe to merge then stop on the slip road until you find a gap.
Finally, when you have located a gap make sure you're up to speed. Nothing worse than having someone on the carriageway doing 40mph because they haven't got up to speed.