If you think the macro lens is expensive, you can consider auxiliary props, such as close-up ring, anti-ring, double-yang ring and close-up filter.
The first three operations are somewhat complicated, and all need manual focusing (some even need manual metering). If you are a beginner, I recommend you to use a close-up filter. It's actually something that looks like a UV mirror. It is screwed in front of the lens, which is similar to reading glasses and can increase the magnification of the lens. Cheap ten dollars, expensive three or four hundred. Compared with the macro lens, it's really cheap.
If you want to shoot without other accessories outside the lens, the effect will definitely be unsatisfactory, and you can only shoot an enlarged picture after shooting.
In parameter setting, it is best to adjust the aperture to F8, so as to achieve the best definition of 18-55. ISO had better use 100, so the picture is purest and the picture quality is best. But this requires high light, so a constant light source must be prepared. If you don't want to buy expensive special lamps, you can use work lamps and high-power desk lamps.
Of course, the background and composition should be well done, so that the imaging can be fascinating.
Welcome questions.