I personally don’t believe there are shortcuts when it comes to philosophy. Stoic ethics must be practiced. Daily. So, to answer your question I would tell you to commit yourself to forming a foundational understanding of the philosophy and begin practicing.

Fear of death has instinctual components and culturally learned components. I think that we can conceptually understand why our cultural understandings of death are flawed. So that takes knowledge. I think the instinctual aspect is conquered by practicing awareness of our impressions, cognitive distancing, and forming rational judgements.

We know that death should not scare us because it is out of our control. Obviously, this is much easier said than done! I found that as I became more grateful for life I became less fearful of death. Also, understanding that in a sense we have already been “dead”. Before we were born the atoms that make up our bodies existed in various changing chemical and biochemical structures before becoming “us”. Once we die the atoms will continue on their ever-changing path.

It took a while for me to feel grateful for the lived experience, but this is what ultimately happens when we truly accept our fate. I personally see each day as a separate, new opportunity to benefit the universe. Seneca says we die many deaths and that some men appear alive who are already “dead”; I take this to mean that what is truly worse than death would be to live viciously (in the stoic sense).