I used to think that I needed "perfect" form in all my lifts. But "perfect" is a moving target. Lifters are always making variations and adjustments. "Here is exactly what to do" is probably unrealistic advice. However, it IS important to start learning to be intentional with our form, so that we can become consistent week in and week out. This can help us make great progress. Get started in building those healthy habits one day at a time and the rest will fall into place as you go along.