If you're considering leaving your husband, there are a few things you should do to prepare yourself emotionally and financially. First, it's important to sit down with your husband and talk about your concerns. If he's unwilling to listen or tries to convince you to stay, it may be an indication that he's not willing to change whatever it is that's causing you dissatisfaction.
Once you've made the decision to leave, start planning for your future. This includes figuring out where you'll live, how you'll support yourself financially, and what kind of custody arrangement (if any) you want for your children. You should also begin gathering evidence of any marital problems, such as financial records or emails/texts documenting abusive behavior. This will be helpful if you need to file for divorce or seek a restraining order.
Finally, make sure to take care of yourself during this difficult time. Leave situations that are likely to provoke an argument, eat healthy and exercise regularly to help reduce stress, and reach out to friends or family members for support.