As others have mentioned, find a decent beginner program and follow it. Other advice:
run slow. Really slow. Embarrassingly slow. Slow enough to have a conversation. You don’t need to do any speed work yet.
your biggest priority is avoiding injury; it’s a lot harder to recover from one than to avoid it in the first place. You accomplish this by slowly ramping up training volume, using decent shoes that aren’t worn out, and having decent form.