That isn't necessary, any more than it is necessary to decide for oneself whether the earth is flat.
It is a matter of faith. You may think you have the final answer based on facts but your facts are insufficient to determine your conclusion; hence, you are accepting on faith what you claim to be "science."
Reality isn't hostage to the psychoses of individuals. Science deals with what we can know. It doeas with it very effectively and accumulates reliable knowledge.
What you call faith is indeed a private matter, and arrives at no consensus over time. Faiths tend to splinter rather than converge.