Asking what you should have purchased is somewhat like asking whom should I have married. It doesn't matter now. What matters, is what can you produce with what you have. And what do you want next?
Less than a year ago, I was in your position. My camera was a Sony Mavica. It belongs in a museum. It took 12 exposures per floppy disc, and close ups were obtainable with the assistance of a jeweler's loupe held in front of the camera.
Super Dave, rmpsrpms and a host of other talented, generous volunteers have rocketed me far beyond what I thought was possible. And my current situation is problimatic in a most unexpected fashion. With everyone's guidance, I have been able to craft or purchase so much great equipment, that I have not been able to employ it all. Usually for prices that under other circumstances, would constitute theft.
(SD, rmp, et.al., I really want to get the bellows up and work a half dozen German Enlarging lenses over the top of my Morgans. But family obligations may delay my photo-shoot progress for a little while.)
Post some pictures of what you've got. If you need to use a brick for a steady rest, and a flashlight for illumination, just do it. We all have. And you are likely to surprise yourself with your skill and your camera's abilities. You might (will) even learn something.
I'm a novice, but my two most important lessons were...
Hold that camera steady.
And, get some light on that coin.
And... Photography differs from marriage in that it is not sinful to lust for a better camera.
Let's see some images.