Ok so this girl gave me her number and has a thing for me but I'm not interested in her and am not looking for a relationship right now.. What to do?

Andrew21x
So I'll try to keep this short, my neighbors cousin needed the keys to my neighbors house and I have an extra set of keys, so she stopped by my house to pick them up.
I noticed when she picked up the keys and when she came to bring them back that she was being kind of flirty with me, trying to start a conversation and stuff... So I just went with it. We never really spoke before, just a little smile here and there if ever I'd see her outside.
The next day my neighbor comes and ring my doorbell and tells me her cousin found me cute and wanted me to have her number... My neighbor then started going on and on about her cousin and all her interests and hobbies and what she's studying and where she's working... She gave me this whole detailed description basically lol. While I was flattered, I told my neighbor that I wasn't really looking for a relationship at the moment, but she kept going on about how amazing her cousin is...
So I took down her number and called it a day.
Right now I'm just not sure what to do though. This girl is not really my type, first of all. I've seen enough of her to know she's really loud and obnoxious and I'm not into girls like that. I'm a little picky when it comes to girls but whatever... also looks wise, not to be rude but she just isn't very attractive in my opinion. On top of that, at the moment I am not interested in getting into any relationship. Don't have a car, lost my job, trying to focus on school... just don't want a gf rn.
But then I have my mom up my ass telling me I should text this girl and it's awkward whenever I see my neighbor outside because she knows I haven't texted her cousin yet...
It's already been about a week now but I don't know. I kind of feel bad just taking her number and never texting her... but if I would text her I don't really know what I'd say?
Anyways sorry for this huge post lol ik this isn't this huge deal but it's been on my mind so I thought I'd post and see what people think haha
Ok so this girl gave me her number and has a thing for me but I'm not interested in her and am not looking for a relationship right now.. What to do?
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