First attempt with 60mm macro lens

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I been oohing and ahhing over all the macro shots i have seen and decided to give my lens a shot...i am a newbie to all of this...and probably is not using or understanding the use of my 60mm lens. I find it quite difficult to get a macro shot like what i see...

anyways i went outside and spotted a fly on my step and decided to give it a try...wow talk about how close one must get to the subject to really get a shot...with that being said i don't understand why it is a macro lens if the same shot could be accomplish with another lens...well i think of macro i thought maybe you can be further away and then zoom into the subject which then can magnified...i know i know that was dumb thinking lol...

well here is 4 shots i got that was somewhat decent i think...lol...i am still learning so i am open for advices and tips! thank you. 3 out of 4 was cropped.

In other macro shot it seems as if they are really magnify...how is that done without being like 1 cm from the subject or is there no way around that? Is it in the size of the lens (60mm or 100mm)?