I killed three mallsai, that was years ago, during my university days. After a two week trip I came back to find them very dead. It was my first foray into bonsai. In hindsight I would not have made it very far back then. The interest never died.
This time around, no casualties so far. That said I had someone dig up a Duranta for me, and they cut just about all the roots. Fingers crossed though, its a very hardy species and I am hopeful. The tree itself, aside from a bad case of reverse taper, is VERY promising!
All the best with your first.