You want to win and be successful? Combat. Struggle system to go with it. No need to go wild with it. Don't go 'on defeat' scenes but implement scenes with the struggle system. Stay dedicated. There's a lot that could be done with being a chemist in combat. Is the formula of most successful games. All else fails, have a strong vision of what you want to see and do with it above all else and stick to it to avoid burnout. Good luck.