The tendency to use too much reverb is a bit like the tendency to have our RH Parts a bit too loud... It comes from trying to make our performance sound great WHILE WE ARE PLAYING.

Thing is, while you are singing, you not only hear the arranger and your voice with the effects coming out of the speakers (or headphones, if you are using those - you should, so you can turn off the speakers and avoid bleed into the vocal mike if recording at home), but you are ALSO hearing your own 'head voice', that is, the acoustic sound of your voice and what the ears pick up from vibrations going through your head from throat to ears internally...

Now, this 'head voice' gets added into what you are hearing, but of course, it has no effects on it. So this tends to make what YOU hear a bit drier than what is coming out of the speakers (or cans). So, to get a perfect effect level on the recording, you should always set your reverb a bit drier than you actually want to hear..! Then on playback (with the head voice no longer present in your ears) it should be much closer to what you want.

Experiment a bit with it... remember, reverb is really a 'distance' parameter. You want your voice front and center (where singers like to be!), so you don't want to push it to the back with too much reverb!

Try to bed the vocal reverb in with the track... if the style is pretty wet, you can get away with a fair amount on the vocal. But if the style on the whole is not very 'reverb-y', keep your vocal in the same ballpark, and it will all gel together nicely.

Hope this helps.