Me? Challenging myself to do something I can feel proud of.
I think anyone that uses RM can create a Map with a simple ground texture. I often try to challenge myself to make that map look better than ones I've done in the past or maps that others have done.
When I try working, I have to take it step by step. I could take a step and generalize an entire story to get a baseline idea for the type of story I want to tell so it gives me an idea for what types of enviornments I'll need to make and the types of scripts and art assets I'll need to use to bring the world to life. Once I have a general idea, I start taking it in stages and buiding more specific things.
I take breaks between steps. I also go back and forth between steps. Look at the big picture and see if the smaller part helps to complete a part of the big picture.
Mapping and Eventing are probably the biggest parts of creation that challenge me. I try to lay out a Map that stays true to the big picture, then reference my generalized story to do the eventing for that map. To keep my motivation, I use references to know what needs to be done. If something is too big or too much to do at one time, I try to do it in chunks, where each chunk and step I take is something within my ability to achieve, and try to create something in that step where I can be proud of each and every step I take.
For me, the sense of accomplishment of each completed or improved step is what gives me motivation to move on to the next step.
Databasing is one of those things that we often neglect. I cant do it all at once. If I did, the story that unfolds would be based around a Weapon and Armor Base. So I have to build the Database in chunks that coincide with the Story. Is it time to upgrade the characters weapons and armor? What would be fitting at this stage of the game? How is my Pacing? Does the player need to be leveled up here? Is the player suffering from Grind Fatigue? Should I put in a Puzzle so the player feels clever, or should I continue telling a bit more of the story here? Does this part fit with the Big Picture? I have some flaws here and there that need to be fixed, but are these important enough to focus on fixing them now or should I leave them for later? Every time Im able to answer one of these questions, it gives me a goal to reach. Once I achieve that goal, I can move on to something else, but I always strive for the sense of small accomplishments by reaching small goals to reach the ultimate goal.
Those small accomplishments keep me more motivated than only striving for the ultimate goal as my only sense of accomplishment.