I've been doing this startup thing alone for 1.5 years now.

It's fun to learn some business skills along the way.

It's more possible than ever to build great digital products with a tiny team (or even single person).

If you have a day job, then keep your day job. Start implementing your idea on the side. Do it for at least 1 year. Startup is a marathon. There are a lot of "over night" success stories from media that seek for clicks. But in reality, you'd need to wait for many years to see traction. Do the test drive for 1 year, and see if you still enjoy it.