Hi serene1,
The first suggestion I would make is to give any new mattress a few weeks before you make any significant changes because there will be a break in and adjustment period over the first few weeks with any new mattress. There is more about the break in and adjustment period and also some other suggestions in post #2 here that may be helpful as well.
There is also more about the most common symptoms that people may experience on a mattress and the most likely (although not the only) reasons for them in post #2 here that may be helpful as well.
Shoulder issues are often the result of a unsuitable pillow so it may be worthwhile trying a different pillow (possibly thicker if your mattress is firmer than your previous mattress and the gap between your head and neck and the mattress is more than it was previously).
If after a few weeks you have tried some of the suggestions and you are still finding that you have pressure points in your shoulders then since you already have two soft layers in your mattress (and the soft Talalay is their softest layer) it may be worth considering adding a topper to your mattress.
Latex is a very resilient material and Talalay is the most resilient version of latex and this is just part of the properties of latex. You can dampen the “feel” and resilience of latex somewhat by adding a topper that is made from a less resilient material on top of your mattress. Memory foam would be the least resilient but polyfoam, natural or synthetic fibers, shredded latex, or even synthetic latex would also reduce the surface resilience to some degree).
Phoenix