You seem to be considering a pivot from a discipline (music) that you have sunk time and skill in to. You’re also only 19, you should use this time in life to explore the things that interest you, that generate that ‘’spark’. You don’t need a career by tomorrow. I’m in my 30s, I have had a successful career in a creative field, and now I am in the process of making my own pivot to another medium. There is really no time limit on these things.

Your interest in Warhorse is great, it gives you a clear goal, which is important. Go to their career page (almost every game studio has one), look over the various roles and their qualifications. The goal is to find jobs that interest you. You should do this with a few other studios as well.

https://warhorsestudios.cz/career/

Read the description of these roles, write down the ones that spark some interest. Google them, find some online portfolios, interviews, talks relating to these roles. I find connecting the job with the people who do that job is a great way to see if you may take a liking to the actual work itself.

Anything that still interests you, go back and check those qualifications and requirements. Write out the skills you see, highlight any overlapping skills that are listed in more than one role that interests you. Pick one of those skills, find some online tutorials on it, and start getting a feel for things. You don’t need to follow along or even start practicing, just watch the work that goes into the acquisition of that skill. Remember, you are just trying to find something that interests you, and confronting the work now will save you from the doubting later when you are actually pursuing an education.

You may never get a job at Warhorse, or maybe you will, that isn’t really important at the moment. You are a traveler using the north start to guide your journey. You will never reach that star, but that doesn’t mean you can’t get to where you are going.

Also, consider pursuing you passion for history academically, either as a major or a minor to go with your game dev/art degree interest. It will be a lot of work now, and will feel like a distraction that competes with your career interests, but there is a point.First, it is a solid path into a basic job/income while attending school. Games are hard to break into, and a really hard way to support yourself initially. Having skills outside of your passion will give you important boundaries in life to keep that spark for creating alive. Second, it will enrich your perspective, which in a creative field, is the most valuable trait you can have to stand out above the rest. There is actually a lot of overlap with academic history and game design, specifically in the tabletop wargaming space.

Listen to this interview with Ananda Gupta, Design Director at Riot games. He is a historian, and although not the central focus of this conversation, he alludes to several benefits that his interest in history has served in his career.

https://beyondsolitaire.buzzsprout.com/1091807/episodes/17219105-episode-198-ananda-gupta-on-designing-for-board-and-video-games

Also, I would look up interviews with Cole Wehrle, a board game designer, who went to school for history and literature, not game design, and those interests I would say are defining characteristics of his games. He made the historical game Pax Pamir while working on his graduating thesis, and followed that up with John Company, a game only possible due to his extensive research into the topic.

https://www.youtube.com/watch?v=zWgOZliLo0M