In The Glass Menagerie what conflicts does Tennessee Williams develop in the first three scenes of the play?

Tennessee Williams's The Glass
Menagerie is a play fraught with conflict; however, Tom's internal conflict
of being torn between his desire to fulfill his dreams and his sense of responsibility
to his mother and sister is pivotal to the play as it generates external conflicts
between Tom and his sister and Tom and his mother. And, while Laura and Amanda come into
conflict with Tom, they themselves have internal conflicts, as
well.

SCENE I

The tension
between Amanda and Tom is introduced early in this scene as Amanda criticizes his table
manners and his smoking; Tom responds in disgust.  When Laura offers to clear the table,
Amanda tells her to "stay fresh" for any "gentleman callers" who might appear.  This
statement reflects Amanda's delusions about Laura as well as illustrating her internal
conflict of living in illusions from her past as she reminisces of her having such
gentlemen callers in her youth.

SCENE
II

In this scene Laura washes and wipes her collection of
glass animals, but when she hears Amanda coming, she seats herself stiffly an the
diagram of a typewriter keyboard that she is supposed to be learning.  When Amanda
enters and rolls her eyes, shaking her head, Laura becomes nervous.  Clearly an external
conflict between daughter and mother develop as Amanda has learned that Laura has not
been attending Rubicam's Business College as she has told her mother.  Because she is so
terribly sensitive, Laura has been incapable of taking a speed test and has completely
broken down, she has never gone back.  She tells her mother, "I couldn't face it." 
Laura's timidity and lack of self-confidence cause her much inner conflict.  Her
crippled leg, of course, also contributes to Laura's poor self image, but Amanda tells
Laura that all she has to do is "develop charm."

SCENE
III

For Amanda, the idea of getting a gentleman caller
dominates her thinking as she perceives Laura's marrying as a solution to Laura's
problems as well as Tom's.  With Laura married, Amanda can be taken care of in her old
age, and Tom, then, can be free to pursue his dreams.  In the fires of this desire and
her desperation, Amanda sells magazine subscriptions in order to refurbish the
apartment. Neither Laura nor Tom want Amanda to go through all that she
does. 

In this scene, Amanda argues with Tom over a D. H.
Lawrence novel that she returned to the library because Tom was reading literature for
his prurient interests.  They argue; Tom tells Amanda that he will not listen as he is
going out.  This argument upsets Laura who desperately asks Tom not to leave. 
Nevertheless, Tom departs as Amanda exclaims, "I'm at the end of my
patience!"

Throughout the first three scenes, the main
conflicts are within Tom (internal) and between his mother and him (external).  Caught
in the middle of these conflicts is Laura, who simply wants to escape reality (internal)
and just live quietly with her family (external).  Amanda wants the happier world of her
youth in which she has had attention and comfort (internal) and she wants security from
Tom or Laura (external); Tom desires neither--like his father, he wants to flee, so he
can find a place where he can fulfill his own personal dreams (internal) and not have to
be responsible for others (external).