Brakes not working

Hi all still have brake not stopping well
I thought it was just me but my dad drove my truck down the southcoast
when he arrived said what the f---s with your brakes.
my wife drove it she said you need to get your brakes fixed.

took it to Nissan they tested it said there was Air in frt so will bleed it out for
& ajusted the rear $150.00
got it back still no good
(I think the mastercylinder is the problem )
sitting at lights pedal starts to sink to floor/in the morrings need to pump the brakes to get it to stop at times also you need to leave 2 car lenghts to stop at anytime.

its been at Nissan for 2 days now

Sounds like fluids getting out, or air is getting in. If brakes are not your thing (& lets face it, most of us fall into that category) then take it to a brake specialist - the Nissan work experience kids are not worth trusting!

+1 on a brake expert. Hydraulic fluid systems require more than just a novice's attention.

Either a leaking wheel cylinder or a rooted master cylinder.