What is the theme of the game?
That might help with prop ideas.
This guide might help.
I suggest making the levels scale in difficulty (easy to hard) as to the player’s strength or if you have a difficulty selector so players can prepare for the final challenge.
If it’s okay to ask, @Zaraxion why where you suspended/banned?
If you did something wrong I wouldn’t suggest making an alt account because it could result in a bigger punishment.
(Or were you permabanned?)
(Similar question as @Magenta_Dragon)