how often should I reach out to my only friend w/o being annoying/:?

Hi so I have only litterally 1 friend and I am not close with my siblings (litterally only see them at family gatherings) I'm extremely insecure.
I know I'm not the most tolerable person, also know that no one with kids wants to hang out everyday or possibly even every week (especially when she has many friends) so I know this is a stupid question but how often should I ask her to hang out/reach out to her without being annoying I don't want to lose my only friend ... I'm 21 and I have never been in the position of only having one friend.