My ds5 had awful handwriting last year. Every parent/ teacher conference, the teacher talked about his handwriting and ways to strengthen his hand (cutting, play dough). I worried and tried the things they told me to do. Well, this year, he has gotten much better. He is not the best in his class, but probably mid- range. I'm not saying don't worry, but he might need more time. I was told its very common for boys at that age, and he is left- handed. I did find stuff that had some handwriting, but not tons; but he had fun doing like word problems.
Hang in there and welcome! There's lots of good advice and support here.