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: 116 x 80 stitches
Sewn Design Size: 8.3 x 5.7 inches or 210 x 145 mm
Suggested Material Size: 14.2 x 11.6 inches or 360 x 295 mm
Stitch Style: Cross-stitch Using 2 strands