As a long-time IV starter (and been on the receiving end way too often too, and I have collapsible threads for veins
), here are some tips.
1-if you have trouble getting a vein to "pop", try using a wide tourniquet, or use a BP cuff and lock the stopcock after you've pumped it up.
2-hang the arm slightly down-allows the vein to pump up a little
3-only apply the tourniquet tight enough to block off some blood flow. If you do it too tight, then you block all blood flow, and the vein will shrink. You want the blood to flow into the area, but be restricted in flowing out
4-stabilize not only the arm, but use your thumb or forefinger to pull down on the skin just below your entry point, right over the same vein you are sticking. This stabilizes the vein, makes rolling harder, and keeps the vein taut for easier penetration by the IV
5-after the flashback, while holding that skin and vein taut, advance the catheter another mm, THEN try the flush. I use my thumbnail on the catheter hub, holding the skin taut. Usually advancing the catheter another 1 mm after flashback is enough, if not, "floating" it in with the flush usually will do the trick.
I've got other tips, just don't have a lot of room here. Feel free to email or PM me directly.
And yes, it *will* come in time.