Advice for an anxious bird mum

[Aus_Conure_Mum26]

Hi all! Our 3 month old Green Cheek Conures use to nibble both our fingers when we have them near the cage or when outside of the cage.

Now they seem to only nibble my partners and even Pumpkin who I seemed to be their favorite for a while has now increased their nip a little when they do nibble.

My partner does have a little length to their nails whereas I no longer have nail extensions, which never use to be an issue.

Have I dont something wrong or have our babies decided that Dad is the good parent and im the bad parent?

Unfortunately as I have anxiety I do overtime sometimes and this has me overthrowing even though I know I shouldn't in terms of the babies.

Any advice would be much appreciated. Thank you!