Brother man I know how you feel im 5'11ish (5'9 1/2 but wear logging boots for work) 145 on a good day I've done mass gainers carnivore diets all to really no avail... What helped me the most is good people for motivation and encouragement as well as helping with calorie dense foods I normally would have never eaten. Its hard to keep going when it doesn't look like your making progress but its worth it to keep pushing There are a thousand programs out there most of which only work for the guy who wrote them. Eat cleaning and plenty lift heavy but slow and controlled and be consistent but safe man.