How can I make this code an infinite loop that prints out an output before each new loop starts

import sys

print$("$Invoice$")$

print$("$Columbus State University"$)$

print$("4225$ University Ave."$)$

print$("$Columbus$,$ GA $31907")$

print$("-"*30)$

invalid$\_$input $=$ True

def get$\_$student$\_$info$()$:

#Prompts the user for student details and validates input until valid data is provided.

invoice $=$ input$("$Do you need to create an invoice $($Y or N$)?")$

if invoice in $["$N$"]$:

print$("$Have a good day!"$)$

sys$.$exit$()$

while True:

name $=$ input$("$Enter student name: $")$

if name.strip$()$:

break

print$("$Invalid name. Please enter a name."$)$

enter$\_$Address $=$ input$("$Enter your address:"$)$

enter$\_$Location$=$ input$("$Enter your city, state, and zip code:"$)$

print$("-"*30)$

print$($name$)$

print$($enter$\_$Address$)$

print$($enter$\_$Location$)$

print$("-"*30)$

while True:

student$\_$type $=$ input$("$Are you a undergraduate or graduate $($U or G$)$: $").$upper$()$

if student$\_$type in $["$U$","$G$"]$:

break

print$("$Invalid student type. Please enter $\text{'}$U$\text{'}$ or $\text{'}$G$\text{'}.")$

while True:

try:

credit$\_$hours $=$ int$($input$("$Enter credit hours: $"))$

if $1<=$ credit$\_$hours $<=25$ if student$\_$type $=="$Y$"$ else $1<=$ credit$\_$hours $<=15$:

break

print$("$Invalid credit hour range. Please enter between $1$ and $25($Undergraduate$)$ or $1$ and $15($Graduate$).")$

except ValueError:

print$("$Invalid input. Please enter a number."$)$

while True:

tuition$\_$status $=$ input$("$Are you in$-$state$($I$),$Out$-$of$-$State$($O$),$or Out$-$of$-$Country$($C$)$:$").$upper$()$

if tuition$\_$status in $["$I$","$O$","$C$"]$:

break

print$("$Please enter $\text{'}$I$\text{'},\text{'}$O$\text{'},$or $\text{'}$C$\text{'}")$

while True:

online$\_$class $=$ input$("$Are you taking any online classes$($Y or N$)$:$")$

if online$\_$class in $["$Y$","$N$"]$:

break

print$("$Invalid answer. Please enter $\text{'}$Y$\text{'}$ or $\text{'}$N$\text{'}.")$

while True:

military$\_$status $=$ input$("$Are you in the military$($Y or N$)$:$")$

if military$\_$status in $["$Y$","$N$"]$:

break

print$("$Invalid answer. Please enter $\text{'}$Y$\text{'}$ or $\text{'}$N$\text{'}.")$

return name, student$\_$type, credit$\_$hours, tuition$\_$status

def calculate$\_$tuition$($credit$\_$hours, tuition$\_$status, student$\_$type$)$:

#Calculates tuition based on credit hours, tuition status, and student type.

if student$\_$type $=="$U$"$:

per$\_$credit$\_$cost $=\{"$I$"$: $187,"$O$"$: $675,"$C$"$: $688\}$

if credit$\_$hours $>15$:

return $15*$ per$\_$credit$\_$cost$[$tuition$\_$status$]$

else:

return credit$\_$hours $*$ per$\_$credit$\_$cost$[$tuition$\_$status$]$

else:

per$\_$credit$\_$cost $=\{"$I$"$: $215,"$O$"$: $858,"$C$"$: $874\}$

if credit$\_$hours $>12$:

return $12*$ per$\_$credit$\_$cost$[$tuition$\_$status$]$

if online$\_$class $==\text{'}$Y$\text{'}$:

return $($tuition$\_$amount $+395)$

if military$\_$status $==\text{'}$Y$\text{'}$:

return $0*$ fixed$\_$fees

else:

return credit$\_$hours $*$ per$\_$credit$\_$cost$[$tuition$\_$status$]$

invalid$\_$input$\_$invoice $=$ True

def print$\_$invoice$($name$,$ student$\_$type, credit$\_$hours, tuition$\_$status, tuition$\_$amount, fixed$\_$fees$)$:

#Prints the invoice with calculated details.

print$("-"*30)$

print$("$Columbus State University Invoice"$)$

print$("$Student Type:", student$\_$type$)$

print$("$Credit Hours:", credit$\_$hours$)$

print$("$Tuition Status:", tuition$\_$status$)$

print$("$Tuition Amount:", tuition$\_$amount$)$

print$("$Fixed Fees:", fixed$\_$fees$)$

print$("$Total Amount:", tuition$\_$amount $+$ fixed$\_$fees$)$

print$("-"*30)$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

fixed$\_$fees $=67+200+30+57+10+62+195+84$ # Sum of all fixed fees

student$\_$info $=$ get$\_$student$\_$info$()$

name, student$\_$type, credit$\_$hours, tuition$\_$status $=$ student$\_$info

tuition$\_$amount $=$ calculate$\_$tuition$($credit$\_$hours, tuition$\_$status, student$\_$type$)$

print$\_$invoice$($name$,$ student$\_$type, credit$\_$hours, tuition$\_$status, tuition$\_$amount, fixed$\_$fees$)$

while invalid$\_$input:

get$\_$student$\_$info$()$