I think most people find that at times the deluge of bad news that can be posted on a site like this can be overwhelming, and that there comes a point in time where you have to withdraw for your own sense of well being, at least for the short term. However, you should bear in mind the oft quoted phrase "when you've seen one person with dementia, you've seen one person with dementia" . Every person's journey is different and you can't assume that just because someone is the same age, or the same sex, or has the same diagnosis or even the same pattern of behaviour that their dementia will progress in the same way.
I do understand the desire to "read ahead" as it were, because most of us prefer to have some idea of what is going to happen, but really, it can be unhelpful sometimes. There are some things that it can be useful to know and to have in the back of your mind (I would say the most pertinent is the fact that an infection of any kind can cause a dramatic downturn in capabilities, but other people may have other ideas). On the whole, though, while reading various posts can give you ideas and mostly that is helpful, sometimes such posts will give you the screaming abdabs. It's at that point that many people retreat to the Tea Room for light relief, or they just focus on posting their own threads.
I think it can be particularly shocking to realize just how many people there are out there who are affected by dementia. It's still in many ways a hidden disease and then you come here and fine hundreds and hundred of people dealing with it. It has to be a shock to the system.
Take care and keep posting (even if you aren't up to reading at this time).
Best wishes