Dxm compared to mushrooms?

Ive only did mushrooms like 11 times, higher dose 3.5g and almost always had a good time, lately I got really interested in dxm and dissociatives in general, but can't find a good comparison between psychedelics and dissociatives or really between mushrooms and dxm. Just to have an idea what to expected or how does it feel. Plan to start with 1st plat of free base, any tips?