the fonts I have downloaded appear broken and not very legible. Any solution?
Thank you!

♦the♦ fonts ?...

Scriptina, Little Daisy

These are OK. Try to download again and, when you are on a wifi connection with a weak signal get closer to the router or even better use a cable connection.

For Scriptina, use only Scriptina and not Scriptina Alternate.
Or Scriptina Pro : http://www.dafont.com/fr/scriptina-pro.font

For Little Daisy, it's a heavy file. If your computer is a little bit old, the view can make some time.