I also noticed this, ACV pill helps a lot, haven’t been acidy since.
It sounds like a gimmick but they really, really do work, especially just before or just after a meal.
Also don’t worry about cardio, at this point just get your window right, try not to snack between meals.
It will get easier. Keep busy. If you aren’t distracted, it gets easy to start snacking. If you’re busy, any hunger pangs will pass with very little effort. Your body is used to eating at certain times and it likes to remind you of those times. Once you get your new pattern established, it will alert you at your newly established times.