help in need

hey i need a bbit of advice, i go to the gym weekly and use the weights a lot treadmillsfor a few houre but i still struggle with traning. the guy is 2 stone heveyer thanb me and i find it hard getting the teqnuike right with the weight and height he has, iv trained with this guy for 2 years and i dont know what to do, try someone else or work harder, i realy need help

I often practice before a grading with my dad,I'm 9 stone and he's about 15 stone,Iv'e found that as long as the technique is right it's fine, so why not spend time trying to refine your technique. If you still can't throw him then you will have to swap partners with someone else, surely if you've managed to throw him for two years it shouldn't be problem now?!

if it affects your progress then i would train with another guy