Hmmmā¦ 
I do know that I have a problem finding messages when Iāve sent them to other people that arenāt admins. Itās very weird. Maybe, an @admin can help fix this issue. I have no problems finding messages Iāve received from others, only those Iāve sent to people who arenāt an admin. However, Iām on my profile right now, in the messages section, and can see all of the messages that I couldnāt find before under Messages > Sent. You said it takes you to a group? What kind of group? Can you elaborate a little more on that? Like, what do you see in the group? Or what is the name of the group? Feel free to share a screenshot.
As for not being able to find the instructions Iāve shared, I had put in one of the messages to you that you can click the 3 dots on any post or comment and click the bookmark to add it to your bookmarks section, which is also found on your profile under Activity. So, whenever you go to those instructions, next time, you can bookmark the post and can easily access it, at any time.
As for sending you some sunshine, all I have, today, are dark clouds and rain drops. 
Maybe, tomorrow I can send you some sun. 