Home and internship

The way I act at home is very different then the way I act my internship. At home I curse a lot and I talk Spanish. At home you can say that I'm lazy and that I don't like to do many thing. At my internship I'm so not lazy and i actually like working. I talk mostly English but i do talk in Spanish with some students. At my internship I talk very properly and I don't go crazy. Compared to my house im not that proper and I act very crazy. If I had to act the way I act at my internship in my house it would be verry hard because im not used to it and at my house i feel more free and confident. I think that in some ways I could act like the way I act at my internship by the point that i would talk english at my house the whole day but the problem is that I woudnt be able to communicate with my family.