Yep. Lora's are the easiest way to go. Loads of tutorials on Youtube. This is a good one: https://www.youtube.com/watch?v=70H03cv57-o
If you're serious about learning how to use these tools, it's far more affordable to rent a GPU in the cloud. Google Colab even has some free tiers with limited access to GPUs that are significantly more powerful than what you would normally put in a desktop.
I just want to create my own images like Dall-e 2 but using my face instead.