Yeap, it's time to make the switch! I smoked over 20 a day royals / malboro reds for over 16years and have been death stick free for over a month since switching to ecigs.
Main bit of advise I would give you is try not to be too seduced by the cigarette look a like small ecigs too much, instead, maybe start with a cigarette(ish) pen style and see how you get on? Personally I really like my 510 Titan, but shop around, there's lots that might suit your needs and budget. The super minis that look like real cigs and seem "easy to use" with charging pcc's and flavour carts seem a great idea at first (and sure they sortof are) but trust me here, if your used to 20 a day smoking strong analogues, they won't keep up with your nicotine habit long enough. Maybe a week or so but then you'll startto get issues with batterylife, cart size and constantly charging/changing stuff over... Do yourself a favour and go straight to a pen style or above.