Thanks for sharing that advice! That is what I struggle with the most, finishing within the limited time element. I am trying to finish and upload my simple game before the gamejam expires!
I especially like this piece of advice you gave: "- Use ONLY things you are already familiar with! that applies on tools, game engines, components, or anything!"
That is a good piece of advice. In past gamejams (in which I failed to complete a game) that was part of my problem - I was using tools which I was still learning and unfamiliar with. I've noticed a difference in this more recent gamejam because I am somewhat more familiar with those same tools, and that experience has saved a lot of time which otherwise would be spent on the learning curve for the tools themselves, rather than the development of the actual game. I am currently at an awkward stage, with more but nonetheless limited experience in the tools I use, and very few games completed. Currently, it's a race against the clock for me, I am hoping I will be able to finish at least something, even if it isn't very refined or polished. Again, thanks for the good advice!