Is a 4.0 possible?

I have no real idea how hard nursing school is. I have been a CNA for 10+ years, but haven’t really looked at the nursing profession seriously until recently. I did well in school and have about 170 credits (non nursing 😭🤦🏽‍♀️) and a 4.0. Is it possible to keep my 4.0 throughout nursing school? I’d like to apply to a local nursing bridge program after nursing school but keep hearing it’s really competitive and I’m worried!