is there a tool to merge it? or do they automatically merge once they are together?

Interesting enough I have been able to do the outline but not the filling. I press the space bar and still doesnt work.

I wonder if I am missing something, I check the end/first vertices and they match 100%

I was doing the Moho tutorial
however I couldnt find a way to fill out the 'clouds' it seems the vertices didnt close into a single shape. So the 'space bar' will activate the filling on the shapes.

Can anyone tell me if I a need something else.