This is a good question. Everyone's situation is different, but if you are young with no family to support, I think it's best to minimize expenses so you can minimize time spent at a day job, and thus maximize "free time" to work on your project. You may have to be creative and/or lucky about finding a free or cheap living situation, that is still conducive to productivity. If you are really passionate about your startup, though, it will be worth it; you'll know for yourself what sacrifices are worth it to you.
If you can find a part-time job with relatively high wages per hour and some flexibility, that's a good compromise between working a full time day job and being completely unemployed.
Depending on your personal risk tolerance and risk attitude, you can supplement/replace your part-time income with savings or credit.
If you're really creative, you can do something akin to Airbnb's cereal stunt to raise money. :-p
Again, the answer to this question is going to vary depending on your situation, and even for the same situation, people will have different advice based on their own experiences and values.
If you can find a part-time job with relatively high wages per hour and some flexibility, that's a good compromise between working a full time day job and being completely unemployed.
Depending on your personal risk tolerance and risk attitude, you can supplement/replace your part-time income with savings or credit.
If you're really creative, you can do something akin to Airbnb's cereal stunt to raise money. :-p
Again, the answer to this question is going to vary depending on your situation, and even for the same situation, people will have different advice based on their own experiences and values.