Carts suck for most people. A good number of people think tanks suck. I think most people find dripping too much hassle.
Atomizers - ever clean them? Dirty gunked up atomizers suck and make everything taste bad. Some people (with spares) burn off gunk, some just blow out their atomizer a lot to prevent buildup, some wash them). And if you exclude tank attys, there are lots of different attys to try, standard and low resistance, 510 and 306 (I use 306 for dripping w/ a 306 drip tip).
Carts - my absolutely best experience was with blue foam stuffing - holds its shape, easy to wash and pat dry. If you happen to be using standard size 510 carts, strictlyejuice.com has precut blue foam stuffing for 510 carts. Else you would need to buy the small pieces to cut at (I think) Modern Vapor? Or the bulk as Marineland Rite-Size U Foam Sleeve for HOT Magnum Filters in the aquarium dept of Petsmart.
But cartos - cartos were definitely the sweet spot for me - the Boge ones. I know everybody tries to send people right to the 2.0 cartos and even hotter but have you tried the standard resistance Boges? I get great performance and reuse out them with a thin clear juice with no sediment. The cotton isn't getting boggy and clogged, I kept it damp so no singed taste (and the standard ones are harder to singe). One Boge I am using is 6 weeks in use - amazing (this is a bit exceptional - I usually get 3-4 weeks if I am alternating 2). Excellent reuse with thin clear juice. I think I would enjoy more VG in my juice for the thick vapor but I also love the carto working well.
How about juices. What are you vaping? How many have you tried? Have you found ones with aromas that relax you? Everyone has to find their own. For me in the beginning it was Turkish blends with their somewhat pungent nutty smell reminiscent of a freshly opened pack (Backwoods Brew Casablanca, and the stronger FreedomSmokeUSA Desert Ship). Then I found cocoas - they also hit the spot. Cocoa + tobacco really hit the spot. (most cigs have cocoa in them). And that is what I vape for my need. I started by mixing FreedomSMokeUSA cocoa or chocolate into Desert Ship. Currently vaping Vapor4Life WOWbacco (a mostly cocoa tobacco that thin and clear). So that's for my need, and now I can also vape non-tobacco flavors without getting analog cravings (for the first 2 months I could not).