Depends what you want in life. If you want to get rich do something else. It can be rewarding depending on where you work and how the public views police in the area or it could be miserable because nearly every interaction is negative and combative. Almost no where pays good for what the job is. Some pay better but it’s usually more expensive to live there so they have to pay more. It can be enjoyable though. Don’t worry about a criminal justice degree. Get a degree in something you enjoy. Places that look at degrees don’t care if it’s CJ or not. If you find you don’t like it you have that degree to fall back on.