If i'm taking a few months break in between jobs to rest my mind, is it ok to do so or will it look bad on resume/to interviewer?

Nothing wrong. I took breaks of months between roles throughout my entire working life. My last break lasted more than a year before I embarked on something that led to my current role.

Is fine but prepare to answer why

As long as it's a sensible decision. As in not running into debts or defaulting on loans. It's ok. Jus explain it clearly

Should be fine