This was my daughter, she's 23months now and it is dooooooo much better. Give words to her feelings, do the usual 'hands down' etc but also give words for later use. You look frustrated, angry, sad etc.

It's so tough because while they dont do it out of malice you can't ignore it. My daughter had an in between phase where she would hit when frustrated or overwhelmed but knew she shouldn't so would stop herself then give a hug right away. It was progress lol. Anyways, be clear and consistent tell her you understand she is angry but you can't let her hurt others. Move her out of the way if needed.

Hugs worked wonders for my daughter when she was experiencing major emotions and couldn't handle them I could prevent a lot by kneeling and asking if she needed a hug when I sensed she was going to lose control.

It doesn't happen much at all anymore she either just comes fir a hug, or like this morning when she didn't get her way she left the room crying, coming back twice to say 'sad' lol. She gad the words for what she was feeling and opted to just go for a wander while crying before regrouping herself to come back. Now that is progress!!