welcome and congrats!
It's absolutely ok to keep her single for a while !!!
One of the biggest problems in this community is people jumping on new owners for only getting one glider and insisting they hurry up and get a cage mate, WITHOUT explaining how to safely do introductions.
They will often say that single gliders will get depressed, self mutilate and die....... that is not true, UNLESS there is an underlying health issue.
Yes they are colony animals and most of them do better in pairs or more, but being single for a while is not going to cause them to harm themselves.
Please don't let anyone guilt you into get another before you are ready to do so. When you provide a safe wheel, stimulating toys, and attention, singles can do very well as a single.
As your already aware, intro's can go horribly wrong, it can be intimidating, you need to be prepared with a second cage and accessories if the intro doesn't take the first time, and you need to know what to watch for and when to separate. Give yourself the time to research all that before hand so you know how to do it safely.
Get to know her, and let her get to know you... give her a safe wheel, and lots of stimulating toys, if your not sure what those are lots of people here will help with that.
I started out with a single and she stayed single for about 5 months before showing any signs that she needed a cage mate. Then we adopted a 2nd one and the rescue helped us with the intro, we were very fortunate for the intro help most people have to face that alone. I also had an intact male that stayed single for the first year, he showed no signs of being lonely.
Personally I think it'd been easier if I had started with a bonded pair and would recommend that to new owners prior to them buying any but, There are a lot of people that start with one and there is nothing wrong with that.