Q's on Senegal Cham.

[Mirage]

Just bought a Senegal Chameleon... I know they are hard to take care of... found this out afterwards... so far he seems to be doing ok... my main question is: The guy at the pet store said to feed him 3 crickets every 2 days... have had him 4 days, fed him twice and he doesn't waste any time eating (quite impressive!!!) Is this enough food??? (The crickets are powdered with vitamin suppliments).
Is misting with a water bottle a good idea? we are using the bog drip but not sure if he needs more water. Have been looking for more online info, but not tons on senegals and they all seem to say the same care stuff, and nothing in great detail.
Any advice anyone could give would be quite helpful as we would love to keep this little guy Happy & Healthy!!! Thanks! His name is Mirage.