30 Oct 2019, 08:17

@BichonBistro I know how you feel. Research and development can be a lot fun, and there are endless resourses out there on internet. What has helped me is to have a time limit. For example, I would tell myself to spend 2 days on step one. When the time is up, I would do an evaluation to check if I have enough material to move forward.
The goal is to move forward, but if I feel like I do not have enough material, then I will set a new time limit.

I think you are the best judge to know if you have enough to move from step 1 to step 2. You can also just move forward to see if the rough sketches are working for you. If you feel it is not right, you can always step back to do some more research.