I'm really glad I was so fussy when choosing my lizard as after weeks of rejecting any that were photographed on sand, in an un-clean or small enclosure or were generally iffy looking, Ming was worth it and her sweet, trusting nature is a testament to how she was handled as a hatchling.
The frustrating part of the adoption was trying to educate myself about caring for a species I knew nothing about. I was close to tearing my hair out trying to read through all the information so that I could keep my Beardie happy and healthy and hearing horror stories about parasites and Metabolic Bone Disease that can develop without the correct lighting! All the information sunk in eventually and now I could tell you what percentage of uvb, what bulb wattage, what pet brands are good and questionable and all the foods you can and cannot feed it right off the top of my head, should you ever feel the need to ask.
After all that, taking care of an exotic animal that places it's trust in you is so satisfying. Things that I thought I would hate like feeding worms and crickets are oddly satisfying because of how much she enjoys them (or is that just me being morbid). I love waking up in the morning, switching her lights on and seeing her lazily blink her eyes open and come towards me in her tank. When I first gave her a bath and she fell asleep on me wrapped in her towel in front of the telly I knew I was in love.