No infinite is less than the other
There are actually a wild variety of infinities. See eg Strange but True: Infinity Comes in Different Sizes for an introduction. For a more in-depth picture of modern thinking about infinities, see How Many Numbers Exist? Infinity Proof Moves Math Closer to an Answer.
Bertrand Russell pointed out how members of modern religions have to be atheists in regard to other traditions:
"in regard to the Olympic gods, speaking to a purely philosophical
audience, I would say that I am an Agnostic. But speaking popularly, I
think that all of us would say in regard to those gods that we were
Atheists. In regard to the Christian God, I should, I think, take
exactly the same line"
― Bertrand Russell, in Am I An Atheist Or An Agnostic? A Plea For
Tolerance In The Face Of New Dogmas (1947 or 1949)
See discussion here: Understanding Bertrand Russell on agnosticism and atheism as self-descriptions
There are a range of ways to be theistic and monotheistic, without taking part in formal religion - and, that is a growing proportion over those who do attend formal religious services. There are also non-theists going to religious services, which has long been acknowledged and even tacitly accepted in the Jewish community where more emphasis is put on ritual and cultural observance than declarations of faith, but increasingly there are 'cultural' Christians and Muslims too. See for instance this recent discussion here: Atheists who follow the teachings of Jesus
I make the case the processes of development and theological change/exegesis within the community of religions is neglected, but crucial to their character, here: The Ethics of Finding Comfort in Religion: Balancing Personal Benefits and Societal Harm
Durkheim the foundational sociologist, drew attention to religions in practice being far more about generating social cohesion, than declarations about epistemology or theology. For instance, shared participation in festivals. A winter festival has outlived both Pagan Winter Solstice/Saturnalia and Christian observance for most celebrants. Halloween which was the Pagan New Year celebration and time for animal sacrifices to get through the winter has become globally popular, almost totally umconnected from any religious or theological role. Similarly Carnival/Mardi Gras. No amount of atheism is likely to end these celebrations. I would assert utility of a tradition is strongly related to how it supports social cohesion, and whether people want to partake in it's festivals. A cold-hearted gamble on probabilities of literal truth, is a meaningless irrelevance to actual religious practice.
You may also be interested to consider the role of religious traditions and their 'rationing of symbolic immortality', in shaping society and easing our anxiety that our lives will have been meaningless after we are gone: What are some philosophical works that explore constructing meaning in life from an agnostic or atheist view?
I am scared to trust my own thoughts lest my ideas are erroneous. I do
not know whether to back myself and to have confidence in my ideas or
to just keep trying to understand what other philosophers are saying
more deeply until my ideas align
Why would they be the only choices? I make the case here that philosophy is a toolbox, that we learn about from examples of it's tools being used. But we learn in order to be able to use those tools ourselves: on our own modern ethical dilemmas or, towards finding our own path towards a life that feels meaningful or authentic to us. See: (Why) is this negative outlook on the concept of philosophy misguided?
I make the case that wisdom is exactly the skill of solving dilemmas and making good decisions, which requires an active practice of knowing ourselves, and of reconciling our contradictory needs and impulses: Wisdom and John Vervaeke's awakening from the meaning crises?
So, cultivate your own wisdom, as an active practice. Don't simply champion your own thoughts or those of others, develop your own criteria, and remember above all the task of wisdom is not to win arguments, but to discover how to live well:
"don't go by reports, by legends, by traditions, by scripture, by
logical conjecture, by inference, by analogies, by agreement through
pondering views, by probability, or by the thought, 'This
contemplative is our teacher.' When you know for yourselves that,
'These qualities are skillful; these qualities are blameless; these
qualities are praised by the wise; these qualities, when adopted &
carried out, lead to welfare & to happiness' — then you should enter &
remain in them"
-Buddha, in the Kalama Sutta
Only you can determine what matches that, for you.