Need help getting started with image generation

Im totally new to all this AI stuff, i’ll get straight to the point. I want to generate images locally offline on my personal desktop, i’ve got an amd gpu. So i tried out stablediffusion on a website and was stunned by how good the results where. I soon realized to generate more detailed images i might want to use a LLM to enhance prompts. So these are the two things i want to get running locally, a model for image generation so that would be something like stablediffusion correct me if im wrong, and a large language model to enhance image prompts. I have not tried out any of the many AI models so far since i avoided all the hype. Trying to say, if you can recommend me which models suit best for my purpose that would be helpful. Also, i preffer running only opensource AI. I can’t code any programming language, thus a more simple setup or atleast a guide to follow step by step would be very welcome. I tried getting stabblediffusion running but i failed, powershell on windows10 kept throwing errors i tried to solve but couldn’t succeed.