I know that I shouldn't spend recklessly, and should stop buying so much useless things. How do I stop this, if shopping is something that helps me to relieve stress?

As they say "prevention is better than cure."

Instead of finding an alternative "cure" to relieve your stress.

You should consider what is causing your stress, and find ways to prevent it.

Because spending recklessly & money issues is the least of your problems if the problem persist.

Differentiate between your needs and wants. Shop for your needs, not your wants. You may want to seek a counsellor to help you change your spending habits. Just my humble opinion.

To Physically prevent this

• switch to cash only.
• Spend only what you have in your wallet
• remove temptation for buying things on credit
  longer term

1. find other activities that help you manage stress - sports/games/etc
2. talk to a professional about your stress related issues
3. get support from friends and family

Meditate or Pray instead! Way cheaper and an overall positive! 😉