I would say no. If trying to believe in rebirth is causing one mental anguish (due to constant arising of doubt and skepticism) then one should let go of holding tightly to that belief. The converse also applies, i.e. if not believing in rebirth is causing you mental anguish (due feeling of purposelessness etc.) then you should let go of the skepticism.Is rebirth essential an essential aspect of the Buddha's teaching, or just skillful means as suggested by Stephen Batchelor?
Is a belief in rebirth a requirement for effective Buddhist practice?
Hee hee hee.