Well, being an entrepreneur is not easy. You have to cross many hurdles but if you are passionate and confident about yourself, you can do it! However business investment can be very tricky. There can never be a best way because different things work for different businesses and different people. We started off by personal investment. Saved money for a long time and then started our business. You can get help from your relatives or friends for the investment or you can just find angel investors online or do crowd funding. Whatever suits you. But before that you have to know why one would invest in your startup business. This can help you very much in your startup business.