T.S.
S.,
I'm not sure what classifies a 2 y/o as high strung but our 2.5 y/o never stops. He's so smart but has a very short attention span and is always on the go (gets this from me, I know). Anyway, when he was an infant he had colic. We started a strict bedtime routine and still stick to it every night with him.
I believe that routine is very important. Jacob (our son) knows his routine and follows it. At about 7:45pm he gets a bath/gets PJ's on (we let him pick them out). Then, he gets to pick out 3 books for us to read to him. After, he brushes his teeth and gets into bed. I used to rock him on the rocker ("rock-rock") and sing to him but now I just scratch his back and sing ABC's to him about 2-3 times and then I tell him he "needs to stay in...______?" and he answers "BED!" and I leave the room.
I'd say this routine works about 90% of the time. Once in awhile he will moan for me (Maaaa-Ma, Maaaa-Ma) and I'll go back in and ask him "What's wrong?" He'll usually say, "Scratch back one more time." I'll tell him this is the "last time" and I have him repeat it to me. I scratch and sing and he's fine.
In the past 5 months we've a) had a second baby, b) taken away the pacifier and c) switched him to a big boy bed. Through it all, the routine has changed very little. So even though all these changes are going on around him, he could still count on some stability from us. It's seemed to work out well.
We did the same routine with our 4.5 month old and he's been sleeping through the night since about 10 weeks.
Good luck to you.
T.