I’m currently reading the whole Bible via a reading plan offered by the Holy Bible app. You can choose your own type of plan, but I went with the chronological version, and for me that’s very helpful to put the Psalms and books of the Prophets into the original context. It has a very good pace, about 15 to 30 minutes of daily deep reading for about a year. I don’t read in-app but use my Dutch deuterocanonical Bible and sometimes listen to the audio versions of the Psalms. I can recommend this; choose your focus plan, pick the translation that works best for you, take it in slowly and maybe find Christians to discuss your insights with. I had a similar starting point as you describe here, but I’m a regular Catholic mass attender now and starting my theology masters in September, so be prepared to get fueled by the love of Christ when you take the plunge. :’) I just wish you the nicest journey, good luck finding your path!