I'm having trouble when my friend gets close to me in sparring and sticks to me like glue. I'm against the ropes, and I try to throw hooks, but I have no space or power. I don't want to just resort to the clinch either. I want to work my strikes. And when I try to take a step back to cock my right hand for a right cross, it takes SO much energy. Nothing winds me more than that...no matter how many miles I run or how many pads I hit. Trying to step back from the inside with an opponent sticking to you like glue KILLS my energy immediately. Are there any instructional videos or articles on the net about inside fighting?