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: 63 x 79 stitches
Sewn Design Size: 4.5 x 5.6 inches or 114 x 143 mm
Suggested Material Size: 10.4 x 11.5 inches or 264 x 293 mm
Stitch Style: Cross-stitch Using 2 strands