Budgeting Advice For Teens
Cross out any unnecessary items from the list. Only include things you absolutely need, such as gas money to get to school, lunch money, etc...
Keep any debit or credit card somewhere (safe) in your car instead of in your wallet when you go shopping. In other words, out of sight, out of mind.
Don't go somewhere you are tempted to spend your money. Do not go to the mall every weekend "just to look", because for most people, that only lasts for so long.