sore!!!!

OK so I told everyone about my friend that gave me the board and is showing me the ropes to a and all.. He gave me these popup exercise things to practice on land to help me out for this Friday. DANG.. I’ve been sore every morning.. this shite is crazy. I work out 3-4 times a week but my shoulders and arms have been killing me for the past 3 days due to the stuff he has me doin.. i give yall made props. Anyone got any other dry land workouts I can be doing, so I can hopefully have a bit more success this weekend…any advice would be great.. Thanks.