I'm not going to look for a bluetooth setup option... you can setup everything with your radio just as was shown in the video. Besides, the BT setup only is for the setup of the FBL controller and not the transmitter... I suspect if you missed something it was with the transmitter setup portion.
I'd point you to go through everything again no matter how much you may feel you did it all... In particular, focus on the normal, idleup1 and idleup2 settings... then the pitch curve settings for each of those. Also remember to move the switch you assigned for each of those modes. I believe you can also look at the servo movement screen and what it shows should be mirrored by the actual servos. If the screen shows all 3 servos moving in full... the model's servos should also move fully. If the servos get in a bind, they will sound like they are binding. I won't try to say how the servo in a bind sounds... but it will be obvious as you move through the travel range and it gets to a point that it sounds like it is struggling.
You mentioned being a beginner. A helicopter is NOT a beginners aircraft. It is much like trying to balance a spinning metal bearing ( marble ) on a glass table top. Even advanced heli flyers will crash often which gets expensive very quickly. I strongly recommend investing in a flight simulator like RealFlight or something of equal quality. Practice for long enough that on the flight sim you can hover in place, with the nose pointed in every direction. First start with the nose away from you, then pointing towards you... then left and right. After that start doing figure 8's keeping the nose pointed in the same direction you are moving. Then move to the real heli and repeat the process because even the best flight sim is only sort of like the real thing. So start with the hovers... nose away at first and then the rest of it. Do not rush your training. Do not get in a hurry to get to the next step in the training.
Any other possible help on this subject... will have to come from the other users on this forum. They will likely not have your same radio or heli... but they all work similarly so should be able to point you in some direction to check if the above doesn't help. I own a heli but I don't fly it... I fly airplanes.