How do I amplify an IR Sensor ?

I agree. It's a poor choice of a sensor for the application. The sensor should be chosen for the application , not chosen arbitrarily and then commissioned for some completely different application. The cart is clearly before the horse. Establish your design criteria (sensor range)

i need to get Readings from the IR Sensor at long distance say 1 meter

and then choose a sensor made for that range (1 meter ) . Possibly a laser displacement sensor but it might be too large for your application. If you use a micro laser and a servo to adjust angle, and uC to calculate geometry it could work.
IsoscelesTriangle

^ <=(Servo pointed Laser)

|

--------- <=(Receiver|)