To do gamedev, you need to learn how to do certain things. So if you want to make project alone, then you need to learn how to code.
Then you want to go through loads and loads of tutorials, user manual, reference, etc: http://developer.playcanvas.com/
Learn to debug as well - it is mandatory skill for a developer.
Please don’t ask people to code for you - they don’t have time and reasons to do that, because what you need - is to learn.
Feel free to experiment a lot - gamedev can be fun, but is hard and frustrating sometimes, so you have to learn to deal with it.
And here is comic that highlights this case, just for fun