This is a guided meditation. Get a friend to read this to you. If you don't have anyone to read it to you, you can record yourself reading it and then play the recording.
Close your eyes. Take a deep breath in then out. Keep doing that. Focus on your breathing. On your next breath in imagine there is a car in front of you. It is your favourite colour and has your name on it. You get into the car. It is powered by gratefulness. Think about the things you are grateful for. Keep focusing on your breathing. The car starts to move. You look out the window. The scenery is beautiful. Think, what does it look like? Soon you arrive. This place is amazing! You love it. You feel comfortable, it's fun, your best friends are there, everyone accepts you, if you want something it magically appears. Think about this place. Think about what you are doing in this place. Think about what's in this place. Think about the sounds. On your next breath out, gently open your eyes. Did this help you relax?
I created that one so it might not be great but you can find some good ones online.