You've pretty much nailed an online entrepreneur's dilemma - that of wanting to pursue everything!

But even though I am on Steemit more than half my day on most days, It never feels like enough.

Actually it could be different for different people. Being an early adopter you're justified in spending a lot of time. But for more recent joinees who also say the same thing, I am not sure whether sacrificing so much time in lieu of other things that they could be doing is really worth it. A cardinal rule for me has always been spend 80% of time doing 20% of those things that are most lucrative.

But of course, there is a catch 22 with that one.

I wrote a comment about this in your previous post. The risk is indeed high especially if it is your main income - not just with Amazon but with other similar platforms as well e.g. Etsy POD. The owners of those platforms call the shots and try to minimize their own risks by closing down accounts at the slightest whiff of doubt - even if it is unfounded.

The best thing to do is to diversify across platforms and if possible, create your own site. If you have your own site, you have most things under control - almost everything actually, except traffic, and traffic can be bought. The good thing is that the same designs can be uploaded at multiple sites.

I am also still learning how to drive, Which I've been dedicating 1-2 hours to each day since I got my car.

If it is available in your area, learn on a simulator. It will cut down your learning curve and also equip you to handle emergencies with ease.

I hope to eventually find more programs and maybe some Shirt generators so I can make thousands of simple designs easily.

The easiest and fastest way to go about it is to create designs on apps like the Over app. If you're on a high tier, you will need to outsource your design creation.

One way to decide really what things I want to pursue is by reevaluating the result here

When you get down to evaluation, take into consideration the 80:20 rule. It will help you set up your priorities.