Best process to make an app
Short answer
Ship it. Then make it.
Long answer
The best way to understand what it takes to make something is to make it. Doesn't matter if it is bad. That's totally fine. But you need to understand what it takes.
No gaming studios care about whether you had a graduation or not. The portfolio speaks. There are people who have great academia and great percentages, but their portfolio is nothing. Then what will I do with it? And then there are people who have amazing portfolios. I would rather talk to that person.
Always be open to learning. Understand what is your skill gap. Fix it. There are a lot of online articles, YouTube channels, videos, courses, everything available free of cost. Do that and figure out whether you really like it. Because you cannot just come in and get stagnated. You need to get better at your craft.