I struggled with that at the beginning of my novel too lol.
My best tip for that is that you can use everything to come full circle back to your dialog. Sometimes it's easy to worry about the action descriptions breaking up the dialog, so I've taught myself to use setting as a simile or analogy I tie back into dialog so it never seems to stray away too far.
Example: MC is talking to her crush during a picnic at the park. She starts to unpack the basket but he tells her he'll do it, so she just looks down at the dizzy, swirling pattern of the picnic blanket, that seems to mirror the confounded way she's feeling, trying to find the right words to say.
And then you go back to dialog again.
This is just what works for me, but I hope it helps lol.