It is good to ask questions, expand your horizons, and be authentic. I don’t know why you are asking this question.
However, if you are personally interested, understand that doubt as an entity can never precede existence as an entity. Also doubt relies on this (Primary) Existence/God as an entity. In other words,doubt/query/uncertainty are creations that are reliant on the primary Existence/God. Logically, it can never work the other way around though. Otherwise, one would have to doubt their own existence which logically should make all questions moot including doubting one’s existence. Therefore, as far as reasoning is concerned, this one is unassailable which no data can possibly refute. The Quran also confirms this and is a positive proof. I understand it can be extremely difficult to stay steadfast and consistent when someone is imposing it on you without giving any reason and the environment, which includes seculars and the so-called “religious people” , stands in contradistinction to the teachings and our nature. Nonetheless, leave such people to their business, think for yourself, reflect and follow this advice “Say, ˹O Prophet, that Allah says,˺ “O My servants who have exceeded the limits against their souls! Do not lose hope in Allah’s mercy, for Allah certainly forgives all sins.1 He is indeed the All-Forgiving, Most Merciful.” 39:53 May Allah make it easy!