Tip n°1 : have fun. Always
Tip n°2 : don't overdo it, don't overpush yourself.
My chapters are around 500 words each, because that's the minimum requirement and it's easy to read, and it allows me to make more of them! I upload on mondayw, wednesday and fridays, and it seems to work well enough ^^
Don't forget that you and your readers both need a bit of time between uploads.
But whatever happens, this is an amazing adventure, with a supportive community, and it can only bring some good!