Louis,
If I was to give you some advice (other than just roll as often as possible), it would be to look for opportunities instead of trying to force the action.
An example of what I'm saying is at 4:40 you decided to get the twister going, but it just wasn't going to happen because your opponent knew what you wanted to do and was just not going to let you get it. You spent 40 seconds trying to force it and ended up getting in a bad position (and tiring yourself out). You could have easily gone to North and South control when the twister wasn't happening and tried to make something happen there.
My point is that the best players are the ones that recognize opportunities and take advantage of them. They seem effortless, they don't force things or use excessive force to make things happen. If you try to force things, you'll be unsuccessful most of the time and you'll exhaust yourself.
You are still pretty new to this, so you going to miss tons opportunities that are there, but try to look for opportunities when rolling and it'll shorten the learning curve. Blue belts recognize more opportunities, Purples recognize even more, and so on.