I used to like meeting new people, but, I don't really like anymore. I used to like meeting new people, but I don't really like anymore.

If it is something you did in the past but don't do anymore, you would use "used to" - I used to run every weekend, but now I don't have time - I used to like sugary food, but now that I'm an adult it's all to sweet for me - I used to like small talk, but now it annoys me Comma goes before the "but" (also "so" and other similar words) - I like X, but Y - I did X, so Y https://www.grammarly.com/blog/punctuation-capitalization/comma/

It is all's fun into getting to know new people and learn new things about them until we get attached to them. It's fun to get to know new people and learn new things about them until we get attached to them.

It's better to use contractions in all situations EXCEPT when you're adding emphasis "It is the right answer" (implies there is disagreement and you are putting emphasis on your statement, ie. it IS the right answer) vs "It's the right answer" (casual, no emphasis) Good related idiom for you --> "it's all fun and games" https://idioms.thefreedictionary.com/is+all+fun+and+games

That is my biggest reason ofor not liking to meeting new people anymore. That is my biggest reason for not liking meeting new people anymore.

I have had enough. I have had enough.

The surprises that those strangers brought into my life awere not for the weak! The surprises that those strangers brought into my life were not for the weak!

Brought (past tense) --> WERE