One way to do it is to always think about the events as having happened before and describe them accordingly. Make sure your verb forms are in the past tense throughout.
To keep making comics, first, you have to be passionate and committed. Then, plan your story arcs in advance. It's also important to keep learning new techniques and get feedback from others to improve.
The character development is often shaped across the work. As the story progresses, characters evolve, face challenges, and grow, influencing the plot and the overall tone of the story.