If you’re flying the A380, 160kts is an ideal landing speed.
Flaring is where you avoid a hard landing by pulling up your aircraft - just below the 5 degree mark! Otherwise you’ll float or ascend, which is something to avoid in landing.
Timing is key. If you hear the GPWS callouts called out quickly, you’ll need to flare, or pull-up earlier. It’s the opposite it they’re called out slowly - don’t pull up so much.
I wouldn’t trust the A/P on final, so I just calibrate it, disengage and hand-fly to the runway. The hardest thing is keeping the plane level when you transition from AP to manual flying. There’s that sweet spot that you calibrate to that makes the transition flawless. Use the Glideslope and Localizer to guide you all the way in, with slow, minimal and calm movements. Keep yourself focused on where you want the plane to go. If it doesn’t work, crank the joystick sensitivity down all the way.
Landings cannot be perfect. Ever. There is always something you can improve on (even for me as well). But a good landing is one you can walk away from.