The long sides have the most changes from the charted Forget Me Not pattern, but are laid out in a linear fashion that makes them easy to work. Start in the middle with motif A, at the bottom line, and then work outwards in either direction as outlined in the video overview. This will give you your bottom line.
From there, place motif I as it is charted on the Forget Me Not pattern in relation to motif B, working 4 rows above the center line. This will give you the top line of your design, and motifs can be worked outward in either direction along the top line once you have correctly placed motif I. For ease of counting, make sure I is your first motif worked after A-E (the bottom row motifs).
After the major motifs are in, fill in with the smaller numbered motifs, and the over 1 letters and numbers. As previously discussed, I chose letters and numbers that represented family members but these can easily be swapped out for letters that hold meaning for you - refer to the full chart of letters and numbers found in the Forget Me Not pattern.
Referencing the layout above, the order of work would be A (pages 4/8), B (pages 8/12), C (pages 1/2), D (pages 5/9), and E (pages 9/10) to establish the bottom line, then move up to motif I (pages 8/12), referencing its placement on the chart relative to motif B.
From there you can fill out the remaining motifs, found on the pages below:
F: page 4, worked 5 rows above the center motif line
G: page 15, worked 1 row above the center motif line
H: page 13, stopping 3 rows below the center motif line
I: pages 8/12. worked 4 rows above the center motif line
J: pages 3/4, worked 3 rows above the center motif line
Filler: 1 (page 6); 2 (page 12); 3 (found in the corner of the motif on page 1); 4 (page 15); 5 (page 9)
Full layout images with guideline counts can be found here: https://katie-strachan.com/side-layouts