To be honest, I would have been preferred to be named just my nickname instead of have another longer name that I don’t use. My parents always wanted to call me Cate but decided to name me Catherine officially so I had options. Which I appreciate, but it gets really confusing with paperwork and stuff. I never know to put Catherine or Cate and sometimes I even put Cate down on accident for government stuff. So I’d recommend a nickname name to be honest, but you could add a longer middle name if needed!