I think of all the things I can accomplish if I keep going. Plan out the result and visualize it beforehand and keep that mental picture as a go to for motivation. You can do it for any goal!
I'm not much of a planner. Almost all the stuff I do every day is what I feel like doing at the time.
When I happen to have motivation to say, build something, I go and start. Then gradually my brain slowly starts to get bored of this and wants to move on to something else.
This happens with a lot more than just building and drawing as well. If I'm trying to look up something to fix a problem I have, trying to rearrange my desk, clean my room, sometimes when I try to go to sleep. (yes I need motivation to sleep) Its like my motivation just gets up and leaves.
If you lack the motivation to do things that you can do then you just weren't meant to do them, regardless of how well you are capable of doing them.
Many people are motivated to do things that they are good at, there are also people who are motivated to do things that they aren't very good at, your skill doesn't factor into it if you weren't supposed to do it in the first place.
Yes, I do believe in destiny and fate and all that nonsense
When I actually do have that 10 minutes of motivation I actually enjoy what I'm doing. I love drawing and doodleing. Infact most of the time when doing something I'd suddenly start doodleing weird boxes and swirly shapes.
I also sort of believe in destiny and fate. But with all the options of stuff to do I have not a single one of them gives me motivation for more than 10-16 minutes.
Sorry if none of what I just said was relevant to what you said. :/Going to bed. Hopefully there will be more replies when I wake up.