The mSR is perfect for a beginner. It is possible that you have some sort of a defect with yours, but the learning curve is significantly steeper with a heli than with a ground based RC. Calmly try this.

Center your trims and when you go to plug in the battery, set the heli on a flat surface and plug that battery into the wire without disturbing the heli. Wait for the light to go solid, then pick up the heli and slide the battery into it's spot. It is critical fot he heli to initialize on a flat, still surface.

Place it on a smooth floor (not carpet) where you have some room. At least a few feet in every direction. Then gently give it some throttle so that it is still on the floor. Don't quite give it enough throttle to take off. You will notice that the heli turned a bit due to the rotation force of the blades when they started spinning. Correct this so that the tail is pointing directly at you. Then give it just a tiny bit more throttle so that it lifts off gently. When it "takes off wildly" DON"T try to fly it, just let the throttle back down. Note which direction it wants to travel and which way it begins to rotate. Adjust your trims a bit. Then try the same thing again and note which direction it wants to travel and rotate. Expect to spend a full battery without ever coming off the ground for even a full second.

Also, please note that ANY heli will want to rotate against the direction of the rotors as you accelerate, and the heli will want to move to the left a bit before leveling out. That is why it "leans" to the right a bit. Eventually you will get used to applying a bit of stick to counter this on every liftoff. AND! One of the classic mistakes beginners make is too much stick! There will be NO NEED for the right stick to be pressed all the way in any direction. To take off and hover you shouldn't be pushing the right stick more than say 25% from center.