When to (double) text or just leave it alone
TLDR:
Hi everyone, my question is how do you know when to text someone, and if they don't reply what should you do?
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Context :
[btw I have a bit of difficulty with social stuff (neurodivergent) so idk if this is something ppl 'just know', but I have a problem with it.]
So the main reason I'm asking is I messaged my friend (who I kinda have a crush on) about a week ago; nothing hectic just a "Hi [name], how's it going?" and she didn't reply, I thought mby she was busy /forgot to reply so I just left it. Then yesterday I sent her a YouTube short that reminded me of her, and she again didn't reply. So now I'm thinking if I should message her again /send a vn/ phone, or if I should just leave alone until she either replies or messages to start a different convo. [btw, we don't message regularly, but we could have 2-3 text/phone convos a month, or only 1 in a few months. Also she normally responds within a few hours to a day at the start of a convo, but once we are both on our phones at the same time we have a real-time back and forth]
Additionally to this specific case, I've had similar issues with friends/acquaintances (both male and female) in the past, where if they don't reply I don't know if they are purposefully ignoring me, and thus don't know how to follow up. I'm also bad at telling if the conversation ended, and sometimes wait for a response when they think the convo is already done.
Thanks for your help <3