 tkacenkoaleksandra 
                                                12.07.2019 02:00
                                                
                                                tkacenkoaleksandra 
                                                12.07.2019 02:00
                                             Polina19790 
                                                12.07.2019 02:00
                                                
                                                Polina19790 
                                                12.07.2019 02:00
                                             Phkgd 
                                                06.10.2019 15:00
                                                
                                                Phkgd 
                                                06.10.2019 15:00
                                             Апуля11 
                                                25.11.2021 15:46
                                                
                                                Апуля11 
                                                25.11.2021 15:46
                                             udalda520udalda 
                                                25.11.2021 15:46
                                                
                                                udalda520udalda 
                                                25.11.2021 15:46
                                             Пот43 
                                                25.11.2021 15:47
                                                
                                                Пот43 
                                                25.11.2021 15:47
                                             Regina13579 
                                                25.11.2021 15:47
                                                
                                                Regina13579 
                                                25.11.2021 15:47
                                             Salvatation1230 
                                                25.11.2021 15:47
                                                
                                                Salvatation1230 
                                                25.11.2021 15:47
                                             Dashasvi 
                                                25.11.2021 15:48
                                                
                                                Dashasvi 
                                                25.11.2021 15:48
                                            
First, let's take a close look at the given letters:
WEYTPOIMAKERARELYOPUYTR
SDGHJKLONCEMNQWELMBFDS
SDGHJKLOOMNQREADFDS
NEVEROIMAKERAUELYOP
Now, let's try to find the hidden words related to the theme "Day in, Day Out".
Step 1: Look for words horizontally from left to right.
In the first line, we can spot the words "WEY" and "RAY". Let's mark them.
WEYTPOIMAKERARELYOPUYTR
SDGHJKLONCEMNQWELMBFDS
SDGHJKLOOMNQREADFDS
NEVEROIMAKERAUELYOP
Moving on to the second line, we find the word "TOY".
WEYTPOIMAKERARELYOPUYTR
SDGHJKLONCEMNQWELMBFDS
SDGHJKLOOMNQREADFDS
NEVEROIMAKERAUELYOP
Step 2: Look for words vertically from top to bottom.
In the first column, we can find the word "SEND".
WEYTPOIMAKERARELYOPUYTR
SDGHJKLONCEMNQWELMBFDS
SDGHJKLOOMNQREADFDS
NEVEROIMAKERAUELYOP
Step 3: Look for words diagonally from top left to bottom right.
In the fourth line, we see the word "DREAM".
WEYTPOIMAKERARELYOPUYTR
SDGHJKLONCEMNQWELMBFDS
SDGHJKLOOMNQREADFDS
NEVEROIMAKERAUELYOP
Now, let's summarize the found words:
1. WEY
2. RAY
3. TOY
4. SEND
5. DREAM
These are the 5 hidden words related to the theme "Day in, Day Out" that we found in the given letters.
Please note that there could be other words hidden in the puzzle as well, but the above 5 words are the ones we located with the given information.