I traveled on my own to attend an event few months ago. The experience was a bit weird, I felt strange, and I didn't know anyone. However, when the event started the next day, I got acquainted with many people and I didn’t feel strange anymore.

Hi Riman- As a native English speaker, here is one suggestion for how you might rephrase your text: "I traveled alone when I attended an event a few months ago. The experience was a bit weird and I felt awkward since I didn't know anyone. However, when the event started the next day, I had the opportunity to meet several people and no longer felt awkward.