Ah yes, scepticism.
Well, first of all welcome 
Scepticism is something I have been, and still am to a degree, struggling with aswell. I think thats only natural given that youre looked down upon as an outright insane person if you publicly speak about your beliefs honestly.
Im far from being beyond it but Id say I have advanced in this regard and its not holding me back as much as it used to do. The advice I would give is to always have your beliefs in the back of your mind while also trying to discern what could possibly be real from what is probably not real. The esoteric and occult communities are riddled with insane claims and plain lies, so being sceptical is also incredibly useful in order to not fall victim to some guru or stuff like that. But of course it can also be a hinderance when trying to dive into this world.
Try to realize that the strictly material world youve likely been brought up in is pretty much one extreme end of the spectrum, whereas outrageous magickal claims are on the other end of said spectrum. What Ive found is that usually the truth is a mixture of both of these extremes.
And also by realizing that you are more intimately familiar with the no-spirits-exist-world you will get closer to balance by tilting a little bit to the other side, even if only for a time. Alas you can at all times proclaim that its all rubbish anyway so you can always shift back if it becomes too extreme towards the other side.
Also I just started a journal in which I try to aim at giving a realistic outline of my progress from none-of-this-stuff-works-for-my-noobish-ass to ultra-accomplished-magickian which is something I felt like was missing when I just started out.
I just made the second post there a couple days ago and Im thinking that maybe it could be interesting for you to read. Feel free to check it out right here.
Good luck on your journey