My recommendation for that sort of use would be to look at using a 'management layer' app that sits above QEMU and handles all the fiddly command line details for you -- https://virt-manager.org/ (which uses/is part of libvirt) is a popular one, I think. The QEMU project has kind of settled on the philosophy of being the low-level tool which provides you "full manual control" and interfaces for a higher-level UI to make use of. User-friendliness is not really our forte and so we let other projects provide that part.