yes, you are correct. instead of TU you used the word Lei with capital L always and the verb conjugations would also be in the third person. ex: Come sta? is how I could ask you how you are doing because I don't know you. similar to Usted in Spanish
I am always a bit confused about pronouncing "ed", do I need to link the "d" to the next vowel or just to pronounce "e" and the next vowel separately, but keep the "d" silent? As in some other situations, I don't feel I hear the "d" at all.