Wesrock has tackled a lot of what I’d wanna point out, but (s)he probably said it better than I would’ve.
Januarius’ blood liquefying is not anywhere near what Catholicism is based on, and is perhaps nowhere near the most convincing miracle we have (healings, Eucharistic miracles, etc.)
Judging by what you’re saying, I have a strong feeling that you are reading/looking at atheist’s arguments without looking at Christian responses/refutations. For instance, you seem to indicate that anything not verified by the scientific method is “illogical” (hinting of scientism, a self-contradicting worldview). Faith (fide in Latin) is probably where we get faithful or fidelity. It’s like loyalty.
You have difficulties with the Bible? Excellent! As well you should. It’s an invitation to look more deeply and grow in the Faith.
We are what we eat, so if you’re just looking at certain arguments from one side it’ll start looking very attractive because it’s all from one side. So my suggestion is looking at Christian responses to your questions or the case for Christianity (essentially, if we can show good reason for believing the Resurrection, we show good reason for being Christian). But as Catholics we are blessed with a rich historical depth that goes back all the way to Christ and His apostles, their students, etc.
If you have specific questions you wanna talk about, I’d recommend making a thread on it here if you can’t find Christian responses already (or maybe bring it up in this thread, if you’d want).
Of course there may be things that seem one way or that may be a stumbling block. Many left Christ for His hard sayings. Yet, when forming a worldview, we have to see if there are answers to the stumbling blocks, different ways of looking at things, etc. If there is no answer at all, then it wouldn’t look good for that world view. If there is a way for things to “click” and be internally consistent, then that worldview is indeed possible.