Does anyone else's veins play hide and seek when getting a blood test?

K ✨
So I had my first trimester bloods done last Friday and the phlebotomist had three attempts.. One in each arm and then my foot!! I drank liters of water prior, ate and even did a little warm up exercise and she still only got half the one of vials needed. I had to go back again today for another try and the lady sent me to the hospital to have it because I'm a "difficult one" luckily they managed to get the blood from the hand oweee!! I've always had tiny veins and it's so frustrating. Anyone else have this issue? Any tips on how to get these veins to stop being so shy ? :)