Leaving my sons father.

I would like to leave my sons father, I’ve dealt with abuse for 4 years now and I just can’t anymore. I feel so guilty for wanting to leave him. I know if I tell him, I don’t want him anymore, he will lash out at me. I’m just trying to leave the way I can. I’m packing, hoping he won’t notice.. I just gotta find somewhere safe to put us. I really want to succeed this time on staying away, I haven’t asked anyone for help. I’m just so nervous but so ready.