Climbing is stunted by fuel load and weight of passengers and stuff.
Give yourself as much runway as possible. Set 10 degs flaps. Elevator trim middle. Open the throttle and hold the airplane on the wheel brakes. When at full revs, release the brakes. Expect a swing to the left.
Rotate ( lift the nose ) at 55 kts. Climb at 2 to 3 degs on the attitude indicator. Accelerate to 90 kts and raise the flaps. Expect a dip. Compensate with the stick.
To make takeoff easier, carry the amount of fuel to complete the trip with enough to get to an alternative field if the planned landing is denied.