How to write an invitation letter when you are admitted to a university and invite friends to dinner?

Example of inviting friends to dinner and text messages when admitted to university:

1, XX, three years of high school passed quickly, and now we go our separate ways. For this reason, our family specially arranged a party and wanted to invite you. Let's get together and catch up.

2. I am XXX, and I have been admitted to XXX school! I am very happy. I want to invite you to dinner. I wonder if you have time to get together.

3. Hello, I'm XXX. I was admitted to the university this year. I want to invite you to my house to celebrate. I sincerely hope that you will come. Please, please, please come here. Thank you.

4. Time flies. Thanks to the brothers' company over the past few years, now we have all gained joy. I hope everyone can be together, because we will go our separate ways soon. Brother, I have prepared thin wine in XXX hotel, and I hope all friends can come to the scene to get together. ［said when making an appointment］ (let's) not leave without seeing each other/Be There or Be Square