Hi everyone, please try to help me out. I've got a female baby zebra finch (about 4month old) her upper beak was almost 1cm+ longer than the lower beak

She was like this since grown into adult color, so not just temporary. I don't know if I should try to trim the extra length with a scissor or nail clipper? Also it was kind of scissor shape like, which top and bottom beaks uneven close. (It happened to my other finch but opposite way, she got lower beak longer than upper one, but NOT scissor shape tho. I posted another forum here about that I trimmed its beak first time and work well!) my baby finch is ok to eat but I can tell she eat slowly than any other finches

I am worrying about her, all of her toe nails slightly longer too which can't grab the perches properly like others . Any suggestions would be great! Thanks in advance, and hope I can help her.. Also her nails still black color like a baby, all other babies (same clutch) already turn to red color, indeed this is a special bird:) maybe due to the incubation period something went wrong when parents sit on the clutch of babies? Thanks for your time again!