Is Xanax really THAT bad?

I’ve taken Xanax a decent amount of times and I’ve never really felt any addictive side effects. I’m usually given no more than 1/4th to half a bar by my boyfriend and have only taken it 1-2 times a week at a time tops. I often take it when I feel like I cannot shut off my brain and night - especially after a night out or something. I start to feel reckless and begin overthinking. That’s why I feel like I need to shut my brain off and get some much needed sleep. It works like a charm and I don’t feel like I need it more often. Am I just lucky? I don’t have access to it myself and have only taken it from my boyfriend who’s got a prescription.

Edit: I don’t take it every week - I’ve not taken it more than once a week, twice max. I take it and go to bed to help me shut down for the night. I can go weeks without taking it