My english is not that level to teach, but I will do some corrections that I think are better to use ;)

About my work

I am a student, but I work as an architect and a designer. Also I am also a tutor of architectural graphics.
As an architect I must draw a fasads of buildings, do the section of edifices. As a designer I have following responsibilities: to create interiors and to draw their them in modern programms. As a tutor I teach my pupil and explain how to draw.
Different time I work each day Each day I work for different time. Usually for about eight hours. But However sometimes I can work more than eight hours.
I enjoy my work, but I want to have my own business in the architectural sphere.
I like my activities. And I can't imagine myself in another sphere of activity.
I work in architectural studio. Its name is Amm-project. It is a very prestigious architectural firm company in Saint-Peterburg. Our shef boss was a main architect of Sant-Peterburg.
I work as a beginner architect. I work only three or four days in of the week, because I am also a student.
I like to get experience in architecture. Not only experience is impirtant important for me. I also like our collective. I must also go to work only three or four days in of the week. It is the best schedule for me.
I dislike to get up early in to my job work. It is not for me. I am an night owl.

About my work

I am a student, but I work as an architect and designer. Also I am also a tutor of architectural graphics.
As an architect, I must draw a fasads the facades of buildings do the section of edifices and the edifice sections. As a designer I have responsibilities: to create interiors and to draw their them in modern programmes. As a tutor I teach my pupils and explain to them how to draw.
Different time I work different times each day. I usually work for about eight hours but I sometimes I can work more than eight hours.
I enjoy my work, but and I want to have my own business in the architectural sphere.
I like my activities, and I can't imagine myself in another sphere of activity.
I work in an architectural studio. It's name is Amm-project. It is a very prestigious architectural firm in Saint-Peterburg. Our shef chief was a the main architect of in Sant-Peterburg.
I work as a beginner architect. I work only three or four days in the week, because I am also a student.
I like want to get experience in architecture, how experience is not the only thing that is important to me. Not only experience is impirtant for me. I also like our collective. I must also go to work only three or four days in the week. Besides, I only have to work 3 or 4 days per week! It is the best schedule for me.
I dislike to get up getting up early in for my job. It is not for me. I am an night owl.

About my work

I am a student, but I work as an architect and designer. Also I am a tutor of architectural graphics. (Sounds slightly more natural to say 'I am also...') but it doesn't really matter. Just a hint :)
As an architect I must draw facades (from french 'façades') of buildings, and do the section of edifices (this sentence would make sense if you said for example 'and do a section on edifices' if you were for example talking about a part of a course or something, but i can't guess that so haven't corrected it and have just given a suggestion). As a designer I have responsibilities: to create interiors and to draw them in modern programs (or: 'to create and draw them in modern programs'). As a tutor I teach my pupil and explain how to draw. (if, as i suspect, you have more than one pupil, you would say 'pupils')
I work at different times/I work different times each day. Usually about eight hours. But sometimes I can work more than eight hours.
I enjoy my work, but I want to have my own business in the architectural sphere/industry/sector/field.
I like my activities. And I can't imagine myself in another sphere of activity/work.
I work in an architectural studio. Its name is Amm-project. It is a very prestigious architectural firm in Saint-Peterburg. Our shef(do you mean 'boss'?) was a main architect of Sant-Peterburg. (This could be worded '...was the main architect in St Petersburg')
I work as a beginner architect. I work only three or four days in/of the week, because I am also a student.
I like to get experience in architecture. Not only is experience is important for me, (but) I also like our collective.(??? 'Our collective' doesn't make any sense.) I must also go to (begin to? start to?) work only three or four days in the week. It is the best schedule for me.
I dislike to getting up early for my job. It is not for me. I am an night owl.