About to get a sugar glider joey.
First - welcome to the forum. Read all you can before committing to being a glider parent for up to the next 15 years.
I hope you will consider getting TWO joeys together. A female and a neutered male would be a good option. You would have the joy of raising both genders and no need to worry about breeding issues.
Gliders are colony animals and really do need a companion of their own kind to share grooming, snuggle for warmth and comfort while sleeping and as a play mate at night when their humans will be soundly sleeping. Gliders especially need companionship at night when they are awake and active.
No matter how hard a human tries or how much time they can spend with a glider - we are not a good substitute for another glider companion.
Getting a second glider later as many folks initially plan to do can greatly increase the cost - a 2nd cage and entire set up will be required for a recommended 30 day quarantine period when you bring home a second glider - plus the time required after the quarantine to gradually introduce the two gliders.
Gliders can be very territorial as they mature and you cannot just bring home a companion for your first glider and put it immediately in the first glider's cage. The two gliders may fight - adding expensive vet bills for treatment of the wounds.
It is often easier to bond with 2 gliders because one may be shy and the other more confident in dealing with humans. They will learn from each other making bonding less stressful for both you and the gliders.