Irish citizenship by association

Hi all,

I already applied for an Irish citizenship by naturalisation around near Feb 2019, currently living in NI with an non-EEA stamp on my passport and received a few letters regarding to my application by INIS asking for more documents back then but this time they sent another letter saying they are processing my application through association as I didn't meet a few things.

I'm so worried I might not get an approval, see my mum has an Irish citizenship and passport through marriage and I have 2 young sisters (half sisters). Honestly don't know what's else can do, cause I've lived here in like over 13 years.