First off, definitely other artists; pretty sure it's been mentioned before.
However, I'm gonna be a little more specific.
Personally, I follow Jazza; he has a sort of free, down-to-earth level of inspiration that makes me want to do something whenever I look at his videos. I figured out a significant amount of my current fundamentals thanks to him.
It's one of those feelings that reassures you that whatever you do, even if it's something random in this moment, that just doing it is always a step forward.
I'm not saying to specifically follow Jazza, as there's many artists that can give a similar effect. It's definitely nice to stop and look around though, and you might find something or someone that always speaks to you.
Also, my "method": it's weird, but I'd say become your artwork. Channel what you feel or what you want to feel into what you do, and worry about the technicalities later. I'm honestly not sure how well this could work for you, as I'm personally pretty eccentric, and this is more second nature than habitual. If I draw someone with sheer determination on their face, my own expression becomes focused. If they look smug, I wear an arrogant smirk like 75% of the time drawing.
There are times where I tell myself having enough personality in everything, from the face to the lines, will make up for whatever shortcomings I have, which can keep me motivated a bit longer. Improvement's a constant, as long as you keep doing. Technicalities come after you have a good foundation.
Out of everything in your gallery, I love Red Fists the most (followed up by that nsfw one woopwoopwoop). The action and the expression speak beyond your technical skill as an artist (said skill is freakin' amazing by the way), and I'm pretty sure you had to feel some of that expressiveness when you were making it.
You said you were trying new things, right? I'd say go to sheer extremes, like scenarios that'd absolutely piss off your characters beyond comprehension, ooooor something less negative, but still incredibly expressive in as many forms as possible. Maybe recreate scenes from cartoons that gave you goosebumps because they were that damn cool. A lot of your stuff, whileincrediblywell done, feels "neutral".
I'm just starting out digitally, though, so take my opinions with a grain of salt, and sorry for taking up all this space! (also I noticed we're the same age xD)