Hi Jewels,
I can’t feel what you feel or see you on the mattress so these are questions I can’t answer and your own careful and objective testing will be a much more reliable way to answer this than any suggestions I can make (see mattress firmness/comfort levels in post #2 here).
The layering of the Beautiful is fairly soft and for heavier people this can sometimes be risky (depending on their weight distribution and sleeping positions) but for lighter weights the risk is much less and there are many people in your weight range that are very happy with the Beautiful.
Again though … your own careful and objective testing is the most reliable way to know because there are too many variables, unknowns, and personal preferences and sensitivities involved to use a formula based on specs (either yours or a mattress) or “theory at a distance” to assess whether any mattress is a good match for you in terms of PPP.
Phoenix