Hi Lara,
the first post only contains the curves how did you construct the solid from them loft or sweep ?
Select all the circles and sweep the arc.
How was the last model I posted ?
To add more points use rebuild points option.
I used 64 points.
You can always just add tangent circles to the main circle
and trim to get a sharp point that’s what I did with the blue option.
Cheers
Barry