You are putting too much time into it. If you can't do something in under 50 hours per week, then you're not being efficient with your time.
I have a day job at a startup (maybe 45 hours per week) and I also have my own side project (about 30+ hours per week on top of that) - So I'm working a lot but these 30 extra hours are easy because I literally work on my laptop from my bed.
Because I know that I only have 30 hours per week for my side project, I am very careful about how I choose to invest my time.
You need to be thinking about how you can make the most of every line of code that you write. You have to reduce your project down to the simplest form that will still meet your goals. This could mean reaching a certain number of users, becoming profitable, etc...
Note that better funded competitors are always going to be able to get more work done than you will - So if you want to compete with them, you have to make sure that your product is simpler than theirs and try to use that simplicity to your advantage.
If a simple solution is just not viable in your chosen area (if you can't break your project into smaller, individually marketable parts), then you should cut your losses and choose a different area altogether.
If you have funding then you should think about hiring people to whom you can delegate some of your workload.
I have a day job at a startup (maybe 45 hours per week) and I also have my own side project (about 30+ hours per week on top of that) - So I'm working a lot but these 30 extra hours are easy because I literally work on my laptop from my bed.
Because I know that I only have 30 hours per week for my side project, I am very careful about how I choose to invest my time.
You need to be thinking about how you can make the most of every line of code that you write. You have to reduce your project down to the simplest form that will still meet your goals. This could mean reaching a certain number of users, becoming profitable, etc...
Note that better funded competitors are always going to be able to get more work done than you will - So if you want to compete with them, you have to make sure that your product is simpler than theirs and try to use that simplicity to your advantage.
If a simple solution is just not viable in your chosen area (if you can't break your project into smaller, individually marketable parts), then you should cut your losses and choose a different area altogether.
If you have funding then you should think about hiring people to whom you can delegate some of your workload.