How do I divorce

We still live together. Do I leave them get a lawyer or do I get a lawyer then move out? I don’t want to tell him my plan so idk what to do… for those of you that have been through this hell how do I proceed??

Who gets the dogs?? I do all their grooming and vet bills and food. Do I take the dogs? I don’t wNt him to come after me

Do I take my stuff with me or just leave them come back and get my stuff??

I’m so lost

I’d be moving in with my mom a few hrs away