Jumping off the ground or the ground pushing me up???

http://coach-al.smugmug.com/gallery/4687593_r3cxn#277201461_Xp7DW so here is a picture from coach al's photo smug mug. Because coach al doesnt allow us to copy and paste pictures i have a link instead. As you can see im pretty high up in the air. befre i approached the ball i now realized how relevant it is to NEwtons third Law of motion. As i am getting ready to jump i exert a force to the ground but what i now noticed is that the ground is giving back an equal amount of force that my legs exerted. Thats crazy so now i know if i want to jump higher i need to increase the force exerted by my legs so that the ground force push will aslo increase.