Welcome to the forum!
There are two pattern sequences here, the moss stitch which is a 4 row repeat and the cable pattern which is an 18 row repeat. You’ve just finished a row 2 of the moss pattern so you’re next row is row 3. Then the moss pattern will continue with rows 4, 1,2,3,4 etc.
You’ve also completed row 18 of the cable pattern so the next row is row 1 and that pattern continues with row 2,3,4,5,6 etc.
Don’t skip any rows, just keep a table of the 2 pattern repeats side by side and check them off as you work.