i am 17 years old and i weigh 78 kg and my height is 5 feet 9 inch.its really hard for me to do this exercise.so is there any alternative for this exercise.and my exercise routine is
bicep curl:15 reps,4 sets (20 pounds)
dumbbell front raise: 10 reps,4 sets (20 pounds)
shoulder press:15 reps,4...