Cloning my C Drive to a new internal SSD

So my C Drive was partitioned to 300 GB and rest to D Drive in a 1 TB SSD on my ROG Strix G513RM laptop. Right now i’m running out of space on my C Drive and I want to add a 1TB internal SSD to the empty slot. I don’t know how to transfer the files from C Drive to the new drive without losing data.

At the end, I want to expand my C Drive and D Drive with the new SSD.

Can someone help me achieve this? I would really appreciate it.