How easy/hard is it to get kicked out of the us military?

There isn't just one General Discharge.

The General Discharge (Under Honorable Conditions) is given to people whose behaviour wasn't terrible, but who generally demonstrated that they weren't capable of coping with life in the military. For example, they weren't able to maintain weight or physical fitness standards, they didn't give a shit about maintaining correct standards of dress, or they regularly violated the lesser rules of military behaviour.

General Discharge (Under Other Than Honorable Conditions) is a step down, and it's given for things like continued misconduct, a single incident of serious misconduct or abuse of authority.

Those are both called Administrative Discharges; basically, the military has decided that while the person is capable of doing their job, they're a fuck-up.

Below that, are punitive discharges.

The Bad Conduct Discharge is given for things like going AWOL, being drunk on duty, DWI, disorderly conduct, and adultery. As well as that not looking good at all if a potential future employer does a background check, getting a BCD means the loss of all veterans benefits.

A Dishonorable Discharge can be given if the service member deserts, but the other acts that result in a DD are things that are classed as felonies in civilian life: murder, sexual assault, espionage, and treason, for example. Getting a Dishonorable Discharge can fuck up your subsequent life in lots of ways, since limits your employment opportunities as much as a felony conviction would. Possibly something that's even more painful to the type of people who get a DD is that it's a federal offence for anyone with a DD on their record to possess a firearm or ammunition.

Having served in the USN for nearly a decade, I can tell you that it's really not that difficult to leave with an Honorable Discharge. All you need to do is learn the rules, learn your job (which the entry tests indicated you were capable of doing if you put a little effort in), develop a tolerance for petty military BS, and figure out the minimum you need to do for those higher up the chain to believe that you actually give a shit.

I can assure you. You want neither discharge. Both of those will limit your job and possibly educational opportunities in the future.

I would guess that you are asking because you are in the Military and having a hard time. A lot of people do. Most of us toughen up and get through it - emerging a better person and with an honorable discharge.

I also suggest talking with one of the religious chaplains (of your choice) concerning issues you are having. They may direct you to other resources. Key is that with a few exceptions (which involve really major acts) that the discussions are "privileged" and they cannot tell anyone in your chain of command, medical personnel, or the MP's.

I know you can just quit during boot camp, but if you're in active service, you want an honorable discharge.

Don't do anything stupid, don't try to lie your way out.