I tend to dislike my code. It’s always a mess. I can’t critique my own code tough, because I just turn it into another mess. I’ve been programming slightly better every year, but this year it hasn’t hardly changed.

#!/bin/bash  RED='\e[101m' NC='3[0m' # No Color  lesson[1]="#!/bin/bash" lesson[2]="#!/bin/bash"  lessons=$  {#lesson[@]} current_lesson=1 speed=70  function start() {         SECONDS=0 #restart timer          reset_user_input         string_to_type=$  {lesson[$  1]};         length_of_string=$  {#string_to_type}         echo $  string_to_type          count=0         while [ "$  count" -ne "$  length_of_string" ]; do                 checkCharacter         done         time_it_took=$  SECONDS         sec=60         wpm=$  ((sec / time_it_took))         wpm=$  ((wpm * length_of_string / 5))         echo " "         echo "speed: "$  wpm }  function checkCharacter() {         IFS= read -r -s -n 1 user_input_char         add_user_input $  user_input_char          if [ "$  user_input_char" == " " ]; then                 add_user_input " "                 if [ "$  user_input_char" == "$  {string_to_type:$  count:1}" ]; then                         printf " "                  else                         printf $  {RED}" "$  {NC}                 fi         else                 if [ "$  user_input_char" == "$  {string_to_type:$  count:1}" ]; then                         printf $  user_input_char                 else                         printf $  {RED}$  user_input_char$  {NC}                 fi         fi     let count+=1 }  function check_correct() {         if [ "$  user_input" == "$  string_to_type" ]; then                 return;         else                 echo "too many mistakes, try again!"                 false;         fi }  function check_speed() {         if [ "$  wpm" -gt speed ]; then                 return;         else                 echo "too slow, try again!"                 false         fi }   function start_lesson() {         start $  1         if check_speed && check_correct; then                 echo "you succeeded!"                 echo " " # padding for every lesson                 return;         fi         echo " " # padding for every lesson         false }  function reset_user_input() {         user_input="" }  function add_user_input() {         user_input=$  {user_input}$  1 }  while [ "$  current_lesson" -le "$  lessons" ]; do         echo "lesson:" $  current_lesson         until start_lesson $  current_lesson; do : ; done;         let current_lesson+=1 done