hows it goin mate. the problem is you might have hit a plateau. i know how frustrating it is myself as i am currently fighting my plateau and ive only been lifting 5-6 months. some advice that i think would be usefull is to mix up your workouts and try
alternating between your weight, for example going really heavy for 8-10 reps, then going light for a longer 12-14 reps. hope that youll...