There's no right answer to your question, fortunately or unfortunately: what's important is for you to fully weight the pros and cons of the two options in front of you and to remember that whatever decision you take now, you can always change your mind.

If you get a job and hate it, you can always quit.
If you start your company and it doesn't work out, you can always get a job.

The biggest mistake in this situation is to believe your decision is final.

Make a list of the pros and cons of each options. Do the math: how long can you survive without a job? Is this long enough to build your product and find clients? How much can a job pay (part-time / full-time) and how much will you be saving?

Once you've made this list, put it in a drawer while you take a day to think about what you really want: what makes your really happy? Where do you want to be in 5 years time? What makes you excited to wake up in the morning before your alarm rings?

You can now bring the two documents one next to the other and make a logical decision. Once this is done, give it a day or two to sit over your decision: how does it feel? What do your guts tell you? When you think about your decision, does it feel right? Do you feel excitement and enthusiasm?

If you wish to explore these questions with me, book a call. I've coached a lot of entrepreneurs and have seen many start-ups fail. I've also coached a lot of people through building a successful career. Either way, what matters to me is that you're happy when you wake up in the morning and satisfied with your day when you go to sleep because that is the single biggest factor to be successful in what you do.