Ah...if we are going to get into the world of how to control the aeroplane, as opposed to how to shout at ATC, my best advice for anyone who is not rated who accidentally enters IMC is to engage the a/p if one is fitted.
If you fly an aircraft with a/p or wing-leveller (and many SEPs have them, they just might not have been pointed out to you) you should be shown how to use it and then practice a few times in VMC.
It could save your life, both because it will keep you upright and never overstress the airframe, and because it will release a substantial proportion of your brain for thinking.
W