care and ID for the lady?

hello cacti folk, while i am an avid lover of plants who require a lot of attention, i know that cacti love to be ignored for very long periods of time. i bought this little lady at a plant market yesterday, and the label reads “Lady Jane” but it seems i cant find any cacti online that are actually called this, so i dont know what proper care is. how long to wait before my first watering? do i need to think about repotting any time soon? is there a way to make sure the flowers bloom? is a grow light over this enough or do i need it outside? im in (i think) zone 8b. any and all advice is welcome! thank you!