I have a druid lv73 and he's a boomkin dps. i always have to wait a long time while in Q for randoms since im dps -_- knowing that a druid can play all three roles, i wanted to know if druid healing and tanking was easy? also, ive never had experience healing or playing in bear form.

Healing is very easy while playing a druid. Obviously it won't be as easy as a pure-healing class, but it will be very simple as you are playing a class that supports semi-healing. Tanking, however, is a little bit tougher; it is certainly more difficult than healing or playing DPS as a druid. I've only somewhat experienced playing as a druid so I don't have any advice towards tanking, however I have taken the time to look up a guide to play as an experienced druid/tank and a skillful druid/healer.

Druid Tanking Guide: http://druid.wikispaces.com/Druid_Tanking_Guide

Druid Healing Guide: [Resto] Jiyambi's Guide to Tree Healing | World of Warcraft Pro