How hard is it realistically to make a 2d side scrolling shooter similar to NES/Sega type games with little to no coding knowledge in 2026?

Hi everyone - So, I've written a retro video game album soundtrack for a game that doesn't exist & I'm so happy with how it turned out I want to try my hand at creating the actual game it's based on as a companion piece. I understand that it will likely be very difficult, especially with my lack of coding knowledge, but I'm willing to spend as long as it takes to get it done. All I really want to gauge is whether this would be achievable on gamemaker for someone like me and how long it would realistically take? I have 7 Zones in mind & 2 bosses. Let me know if this is something that could realistically be done, because like I said - it's not something I've looked at doing before. Thanks again