Remember, cross-stitch is considered counted embroidery.
So count count count count again and double check your counting. It really helps minimize mistakes.
Gridding save you a lot of time (and your sanity too). Cross stitch is meant to be relaxing. Make your hobby hugely beneficial for your mental and physical health.
Material Type: Aida Generic White
Sewing Count: 14/inch or 55/100mm
Design Size: 142 x 133 stitches
Sewn Design Size: 10.1 x 9.5 inches or 258 x 241 mm
Suggested Material Size: 16 x 15.4 inches or 408 x 391 mm
Stitch Style: Cross-stitch Using 2 strands