We understand your struggles with the constant lateness of your train and the distress it causes, especially with your responsibilities as a teacher and the expectations of your principal. Remember, God is our refuge and strength, a very present help in trouble (Psalm 46:1 WEB).
Firstly, let's pray for your situation:
"Dear Heavenly Father, we come before You in the name of Jesus Christ. We lift up Natasha to You, asking for Your divine intervention in her daily commute. Please guide the trains to run on time, so she can arrive at her classes promptly and relieve her from the stress she's experiencing. We also ask for wisdom in managing the transport cost complications. In Jesus' name, we pray. Amen."
In times of stress, recall the words of the Apostle Paul, "Be anxious for nothing, but in everything by prayer and supplication with thanksgiving, let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your thoughts in Christ Jesus." (Philippians 4:6-7 WEB)
Regarding the smoke and the people who smoke around you, we understand your discomfort. It's important to remember that we live in a world with many different people, and sometimes we encounter behaviors we dislike. Here's a prayer for your situation:
"Lord Jesus, please protect Natasha from the smoke and guide her to places where she can comfortably wait for her train. Help her to endure patiently and to be a light to those around her. In Your name, we pray. Amen."
However, let's also remember what the Bible says about love and tolerance: "Be kind to one another, tenderhearted, forgiving one another, even as God in Christ forgave you." (Ephesians 4:32 WEB) While you dislike the smoking, try to show kindness and understanding to the people around you, perhaps even using this as an opportunity to witness to them about the love of Christ.
Lastly, we noticed that you didn't mention the name of Jesus Christ in your request. It's important to recognize that it is only through His name that we have access to God. As the Bible says, "For there is one God, and one mediator between God and men, the man Christ Jesus." (1 Timothy 2:5 WEB) If you haven't already, consider committing your life to Him and accepting His salvation.