I'd suggest maybe trying a 1.2 Ohm coil but tbh I'd suggest buying a Zenith kit instead
(I'm not on commission for Innokin - I'd recommend vaping caviar if it worked but it doesn't)
If your device is playing up a bit and now showing signs of leaking avoid chucking more money at it
At some point, it is very likely you may upgrade your kit and I strongly believe a Zenith will be more foolproof
thus will increase your chances of success if you don't have teething problems & issues etc....
A bad vaping experience from spitback, leaking, harsh throat hits will soon have you back on the fags