I definitely don’t want to poopoo the other great suggestions here about how to use a particular BCP for personal devotions, but I do want to point out that among most orthodox Anglicans, the 1979 isn’t necessarily considered very faithful to the original Reformed vision of the BCP or Church of England as set forth by the English Reformers (and their continental brethren who had considerable influence in the development of it). If you are looking for the most “authentically Reformed” expression of the BCP, and the original from which all BCPs trace their lineage, pick up a 1662 BCP, which is still the officially approved BCP for use within the Church of England. Used by JC Ryle, George Whitefield, John and Charles Wesley, Isaac Watts, John Newton, JI Packer, John Stott, among others, it’s the OG BCP and remains a powerful, and beautiful, expression of Reformed liturgy. It has archaic language (lots of thees and thous), but I haven’t found it to be much of a barrier to my own personal use of it in daily prayer. You can get it pretty easily and cheaply here at Amazon:
Book of Common Prayer, Standard Edition, Black, CP220 Black Imitation Leather Hardback 601B https://www.amazon.com/dp/0521600936/ref=cm_sw_r_cp_api_glt_fabc_Q1FFXYX6790TJV5S2WX1
If you need any help on how to get started, I’d be happy to chat with you in the DMs if you like.
You can't go wrong with this pocket Cambridge edition of the 1662 BCP. Surprisingly excellent quality for the price!
I'll always recommend the 1662 BCP versus other editions if you only plan on owning one, just since it's the standard by which all others are judged. (That being said, avoid this "updated" version. Unless you only own modernized editions of Shakespeare too lol.)
Absolute best (for both your questions) is a Cambridge 1662 BCP. They also have a larger size edition for about $5 more, I think it's called the "Enlarged Edition" or something like that. The 1662 is the Prayer Book nonpareil, Tom's Digest has some recent posts on why that might be.