Starting with the easy thing or the hard thing? that's up to you to decide. I'd recommend knocking back the easiest tasks first, the ones that would take the least time to accomplish. The more difficult tasks might require some incubation time, new skillsets, or a network of friends to help you out.

avoiding  procrastination

Something is better than nothing
It doesn't have to be perfect
You'll get better with time

See a door, open a door, you don't have to step through it right away. Check to see what's on the other side. If you see potential there, then start moving.

the decision to take action - It starts with a choice. Remember the words we use in our own minds carry weight.

The language we use in our internal dialoge affects our reality. No seriously. No more of this Someday i hope to ____. A better line of conversation is I am ____. These are called affirmations, and next time you catch yourself using language like hope, want, trying to, etc. Catch yourself and think about it for a moment. Are you trying to do something? or are you Doing it?  

​going through the motions - Consistency of effort

once you understand what you want, the next step is to follow through. How many artists I know don't do this. I was guilty of it myself. It's called Failure to launch syndrome. I get it, it's easier to just push your ambition aside and play some video games. Next thing you know it's 10 years later, and have to bust-ass to make up for lost time. If you're not doing something every day, start with 1 thing. If you're already doing something every-day, then start doing 3 things every day. It'll take dedication and preparation, but you can do it. Start Now.

If you have creative ideas but never actually pursue them, you can ease the burden by capturing the ideas for later. This is the way I approach blogging and songwriting. When I have an idea, I'll add it to the list (i keep a notebook nearby so i can quickly captue the idea.) Productivity expert David Allen says "the head is for having ideas, not for holding them, so if the muse strikes you, but you don't have time to do it right now, save the idea for later by capturing it.

through a different lens (camera lens example (wide angle vs reg))
​through the lens of 6 thinking hats
through the lens of an outside perspective (ask someone)

With your list of ideas, you can sit down when it's your creative time, draw from the list, and begin to flesh them out. I do this with Blogging, social media, and songwriting. It works equally as well in all these areas. My sunday for example, is blog day. I make a point that no "real work" is done on sundays. They're for me to rest and re-charge. So I kick back with a cup of coffee, open my inbox, pick something and start writing. I'll get two or three articles done in short order because the ideas have been percolating for a while already, and before I know it, I'm already ahead of the game. No more stress thinking "oh shit, I still have to write my blog for the week, but i didn't have enough time."

All those mundane repeating tasks...

Some projects are too big to do all at once, some are slow burners that are going to take time to build momentum. So how do you handle projects like these. Don't panic. I have to constantly remind myself that It's okay, even if it feels like things are moving slowly and as long as I haven't lost hope or given up, I'm putting in the effert that further the project so as long as I continue to put the effort, it'll happen. There's no point rushing and getting stressed about it.