Girls, how long do you think will it take for a girl to trust me online?

I have been talking to a girl online we have been pretty much best friends for quite a while you know and well I have asked her a few things about her not right away after we met but a few months later but she has told me so far is just her name and in which state she lives in and other than that I really don't know much about her but I am really curious now and I wanna know things about her, so how can I get her to actually trust me? cause I don't want her to think I am a creep or a weirdo so I thought I might as well ask a girl about how I can do that.
Girls, how long do you think will it take for a girl to trust me online?
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