18 x 18 x 36 is fine for adult females , an all screen cage or partial glass/screen mix too
since she is small just a 16 x 16 x 30 ia fine, add a pothos or ficus plant.
uvb linear tube light like repti-glo or reptisun 5.0
and in the corner of the top of the cage have a basking bulb of 50 watts or until the basking spot hits 80-85 max, the rest of the cage should be 70-75
you can free range the food, just let them loose or cupfeed
try different feeder bugs like silkworms, hornworms, baby mantids, etc.
what questions/concerns do you have?