[Water Warrior 2]

When you find yourself going too hot into a curve it will help if you lean your body into the curve. Shifting your weight will make quite a difference. This of course takes a bit of practice so you know how far to lean for any given speed or curve. Gently lean your weight and feel the difference. The bike will respond to the shift in weight and put a grin on your face. You don't need to hang off the side like a race track professional to accomplish this. Just try to kiss the inside mirror and feel the results. If the bike turns in too fast then just add some throttle.

If the rear brake is more effective than the front there is something wrong. Either with the brake or your fear of going over the bars. It is highly unlikely you will go over the bars. Practice braking hard. Grip the tank with your legs and brake hard. Repeat, repeat and repeat until it feels normal and easy to do. Develop some muscle memory. Increase your speeds and repeat. Later you can practice down shifting with hard braking to match bike speed and the proper gear as you slow. Always try to be in the proper gear at any given speed, it is the safer way to ride.