It sort of depends on where you work and how many calls you get. I worked at an airport, and, honestly, most of the time it was pretty boring. But, when something went down, we got busy. The difficult thing about working in a jurisdiction that is not busy with "police" calls is that, when something happens, you are supposed to know how to handle it! Like, we had one stabbing, one robbery, and two apparent sudden deaths in my 25 years on the force!
Even when I was on the force, which was over ten years ago, there were people who had previously had bad encounters with police officers. Consequently, when I encountered them, I was judged as being "one of them" rather than given the benefit of the doubt that perhaps I was a good police officer. That made it difficult. It's only gotten worse in the past ten years.
Today, you must assume that everything you say and do is being recorded. That makes it difficult, even if you are a good police officer. There were times that I gave people a break, such as allowing them to throw away alcohol, marijuana, and an illegal knife. Those types of actions never made it into a report, and were not in accordance with policy. I could get fired for doing those things. So, you would not have the freedom to do that.
Another thing that makes it hard is when you see a situation that isn't right, but, it's not illegal, so, you cannot do anything about it. I once had to let a child go with a parent who had legal custody, even though the non-custodial parent was a much better parent to the child. That sort of thing is difficult.
On a personal level, you will probably start off with bad days off - like Tuesday/ Wednesday. If you like to go out with your friends, they will be going out when you are working. This often causes you to drift away from your current friends, and start hanging out with other cops. As you marry and have kids (if you do) the shift assignments make it difficult to see your kids (sometimes) or attend their games/events. I found it pretty easy to find other officers to trade with, but, you need to repay the favor for them at some point. If your wife works 8 am -5 pm and you work 2 pm to 10 pm, you won't see her very much, except on days off. This could put a strain on a relationship.
The really great thing about being a cop is that you and your fellow officers really look out for each other. When you are on a "hot" call, by yourself, you will know about how long it will be before they show up, so you can act all cool while talking to someone rather than let them know you intend to arrest them, for example. It's also good that parents still teach their kids to respect cops, and you can have some meaningful interactions with children.
You can adapt to all of this. It takes effort, but people do it. Other things that make it hard is that the laws are constantly changing. You will get training on most of it, so that will help. Staying physically fit can also be hard, if you ride around in a squad car all day and eating fast food.
I cannot rate it on a scale of 1-10, because, well, it all just depends! But, I hope I gave you some ideas of what to expect. Let me know if you have any more questions!