Batch file closing for no apparent reason - batch-file

Question

I enjoy coding, scripting and other stuff, and today my friend showed me how to make a batch file. I made one, so I run it. it works well, until I get to the one part, where it just closes.
It's supposed to go through the slides, it does that well. But when it gets to the part that it does goto t1win it just closes the .bat file.
Here is my code:
#echo off
cls
:loop
:menu
echo hello
color 0a
color 0
cls
echo This is for scripture stuff.
set /p=
goto scrn1
:scrn2
cls
echo Whats your partner's name?
set /p p2=
goto scrn3
:scrn5
cls
echo Time for the questions!
set /p=
goto scrn6
:t1win
cls
echo Yay! %p1% and %p2%, you did it!
set /p=
exit
:scrn7
cls
echo 2.
echo.
echo %p2%, How did the barges have light? (a= The barges had windows b= Jesus touched stones and the stones gave off light c= The people used lanterns)
echo.
set /p t1q2=
if %q1t2% == a goto scrn7
if %q1t2% == b goto t1win
if %q1t2% == c goto scrn7
if not defined start (
cls
goto loop
)
:scrn4
cls
echo Open the book 'Book of Mormon Stories', to page #145. Read until page #148, but still read #148. Press enter when you are done reading.
set /p=
goto scrn5
:scrn6
cls
echo 1.
echo.
echo Hey %p1%! What did the brother of Jared build? (a=barges b=boats c=planes)
echo.
set /p t1q1=
if %t1q1% == a goto scrn7
if %t1q1% == b goto scrn6
if %t1q1% == c goto scrn6
:scrn1
cls
echo Whats your name?
set /p p1=
goto scrn2
:scrn3
cls
echo Hello, %p1% and %p2%!
set /p=
goto scrn4
Please help.
BTW I don't really care if it jumps around like the sample.
this is the first question I asked, so don't judge meh!

Answer 1

here's the code! :D
#echo off
cls
:menu
echo hello
color 0a
color 0
cls
echo This is for scripture stuff.
set /p=
goto scrn1
:scrn2
cls
echo Whats your partner's name?
set /p p2=
goto scrn3
:scrn5
cls
echo Time for the questions!
set /p=
goto scrn6
:t1win
cls
echo Yay! %p1% and %p2%, you did it!
set /p=
exit
:scrn7
cls
echo 2.
echo.
echo %p2%, How did the barges have light? (a= The barges had windows b= Jesus touched stones and the stones gave off light c= The people used lanterns)
echo.
set /p t1q2=
if %t1q2% == a goto scrn7
if %t1q2% == b goto t1win
if %t1q2% == c goto scrn7
if not defined start (
cls
goto loop
)
:scrn4
cls
echo Open the book 'Book of Mormon Stories', to page #145. Read until page #148, but still read #148. Press enter when you are done reading.
set /p=
goto scrn5
:scrn6
cls
echo 1.
echo.
echo Hey %p1%! What did the brother of Jared build? (a=barges b=boats c=planes)
echo.
set /p t1q1=
if %t1q1% == a goto scrn7
if %t1q1% == b goto scrn6
if %t1q1% == c goto scrn6
:scrn1
cls
echo Whats your name?
set /p p1=
goto scrn2
:scrn3
cls
echo Hello, %p1% and %p2%!
set /p=
goto scrn4