hi alison!
Just an extra thought on the subject of forms...
When I first started sculpting I couldn't get the hang of it at all (in fact getting the form to sit right on the finger was the hardest part), until I swapped the 'horseshoe' forms, for another type of disposable form. I got mine from sally's so you should find them with the rest of the star nails stuff. They're gold and black, and on a big roll (about £7??) The form itself is a rectangle, which has an oval shape cut into it that you push out (and can stick to the back for extra support).
I found these soooo much easier to apply - and the curve you get is much more consistent (you stick together the 2corners of the form that are furthest away from the body - making a nice curve!) - my sculpts have been a million times better since!
I use gel, and they are fine with my uv lamp.
Hope this helps (and makes sense!) x