hi buddy u need an intense practice for doing 225 pushups i suggested u to start practice before 2 or 3 weeks of ur belt test week 1 u do 10 set 20 pushups for 7 days with 1 min rest for deep breathing don't forget to do deep breath atlest 2 or 3 times in rest time do pushups quiet slowly if u do fast it will make some pain in shoulder. week 2 and 3 do 12 set 20 pushups same 1 min rest and deep breath when u do atleast above 225 u will make 225 at that time of belt test remember to laydown relaxily by freeing all parts of body by lying down in a windy fresh air place don't bench any wt on our back