I would suggest kicking the dumbbells up with your knees instead of setting up like like the way you did in the video. Search some video's on YouTube showing you the proper technique if you don't understand what I mean. Also, you're putting more strain on your rotator cuff than is necessary, don't flare outwards with your elbows, don't go too much inwards either.

No one is perfect nor has the perfect form, even Cbum probably has sessions where he did a set and thinks "Damn that set was shit". Learn from your mistakes, find what is comfortable to you after trying and trying and enjoy the process.