Glass of milk, greek yogurt, fruit smoothie, multiple vitamin. is this ok to live off of? will i get amino acids?

Not balanced diet: It is not healthy to eat such a limited diet. You will get enough Amino Acids but this diet will lack essential omega 3 & 6 fatty acids & important micronutrients from vegetables. I advise adding nuts & seeds (esp. Almonds, walnuts, hemp seeds) and veggies of all colors (the different colors are made by different phytonutrients).