First and foremost, don't fully expect to go ew I hate analogs right off the bat. Some people do, some of my friends did.. picked up their 510 and never looked back. I, personally didn't from the get go. But that's another boring story!
Don't be afraid to test other flavors, look in the forums for group gatherings in Michigan, etc, meet your local vapers. We're all one big support group here. Find sites with testers of liquid, 5ml and less, etc when you want to see if you might like a certain flavor, instead of dropping cash on something that sounds good, but tastes like a donkey's rear.
Also, if your cartridge filling isn't seeming to do the job, try to direct drip, 2-3 drops will last you a good bit, once you lose flavor, drip some more. It might be a better delivery system for you, it's all really 100% dependent on your personal preferences.
Here I've rambled on about crap you probably already know, apologies!