Simple tip: Add your keywords in Title. Add the same title in first line of the description.
1. How to bake a Cake?
Rather write this: How to bake a Cake without Milk? How to bake a Cake in just 5 Minutes? How to add Walnuts and Honey in Chocolate Cake?
2. How to make YouTube videos?
Rather write this: How to Make YouTube videos Without Video Editor? Popular App that Create YouTube videos within a Minute. How to Create Engaging YouTube Videos with Zero Effort?
Try searching keywords on Tubebuddy extension, try to balance the search volume (keep it high) and competition (keep it low).
Then use those keywords in your title and description. I hope it helps.