Need help and suggestions from everyone that knows or ever been involved in making a game

I’m trying to make a game which is a side scroller. It’ll be a fighting game where the boss will be in the background but remains active and could damage the player in the map. I’m going to finish it in February, meaning I got 3 more months to make a game which will be having one level at the moment. I’m new to Unreal Engine and I’m also a bit new to coding. If anyone ever make a game , I’m looking forward for your helps and guides through my project. Thank you