WTF am I in a boat???

Sooo let’s start here….. I have nearly lost my mind and dad gum contract cause every 3-4 days of fair running something new has risen from the ashes. Last of which, had clutch installed by what I thought was legit mechanic down in Beeville… let’s say, NOPE! He states 3 day job and week and 2 days later I get my truck back in a rush. I was over to look at my truck everyday whether he realizes it or not and one thing that caught my eye was the way he had tail end jacked up, oh and the huge lip that was on my resurfaced flywheel. Moving to getting truck after 1 day he installed it, welp, hook my load up and test drive….. shocker vibration. So I check everything out shifts good but #### where has my air gone. I get to site and start digging, all air lines were installed improperly and leaking…. ALLLLLLL TO TRANS. Than look in to vibration, due to his hanging the rear end, 379 Pete Flex air rear suspension, reset ride height to 8.75 not loaded… 2 days later 75 with gross weight of 92k…. Bags drop and I’m trippin out, call mechanic multiple time no answer. Ok ok moving on with the list, carrier bearing, u-joints, power divider thus far repaired along with leveling valve… vibration is a sum gun now and for some reason the rear bags are going up and down up and down no matter how I set ride height. Oh yea cab bags do the same they both are tied to Bendix air dryer ports. I’ve soaped tugged jerked drove nearly crashed and still can’t find a leak. If parked, all I have to do is release either park or emergency and boooooom down goes the bags. But wait there’s more…. NOT ALL THE WAY……. this truck is a none stop disaster and I can’t catch a break. Not one full 7 days work out this truck, 4 and down 4 5 6 7 8 9 10 day. I don’t have hair on my head so I pull it out my ….. back! Head out of gutter. Y’all I’ll take any advise as so I’m not losing contract or my wife… contract is #1…. Kidding.
Side not does it with or without trailer, safer without but my job is to haul on.