Self Publishing Problems

Im a new publisher. I've Created a childrens book called Jakes Jumpers. Its a story about 7 jumpers given as a gift to Jake on his birthday. To Jakes dissapointment, seeing as his legendary archaeologist grandparent had such an epic history of tall stories and mystery. Yet with time he finds out that the small psychological edge he is given in the classroom with each garment, these advantages intensify much to his astonishment.