Hello. I am a noob to development

and have been using RF for roughly 5 months. I am working on a new project and figured posting on these forums could get me some support. Project Cell is a Zombie suvival RPG. It is set in a post-apocalyptic city. In the game you play as Daniel Jeffries, a character whose story changes depending on the choices you make. The game will feature a class based system where each class has distinct advantages and disadvantages. The player will have skills that increase as they are used such as:
Using firearms increses your firearm skill
Healing injuries will increase medical skill
Improvising weapons increases engineering skills, ect.
Any imput would be valuable and any assistance would be much appreciated.