Night Photography

Hello, I started photography during thanksgiving with a Canon EOS R10 with a RF-S18-45mm F4.5-6.3 IS STM kit lens. I tried to shoot some photos during the night but all my pictures came back extremely dark and grainy.

I've read that the R10 is a crop sensor camera, which is not the best for low light photography when compared to a full frame camera, but I also read that there really isn't much of a difference these days anyways.

How can I improve my night time photography pics to make them brighter and less grainy?

Is there a big difference in night photography performance when compared to a Full Frame camera?