Good morning, Kimberly. Hardware, unfortunately, makes a big impact on performance for just about any piece of software. Perhaps you have some other programs running while using Blender? You could try having Blender be the only program in use when you’re working with it.
If you are in the market for a PC, you could check out some of CyberpowerPC. They offer some decent mid-tier PC’s with good GPUs for not a whole lot of money. My last PC was a Cyberpower brand, and it was very good for me. The only reason I upgraded was that it was a bit old and outdated.
I hope you don’t give up on Blender due to hardware limitations. – You could also try to create your scenes the way
Kenan shows us in the Astray Course. This could be a great way for you to free up some memory on the system because the objects in the scene will be linked instances.