First we have to look at the fact that only profit is never a part of any business or startups.There will surely be ups and downs in your financial conditions but what really matters is how you deal with the situations , rather you give everything up or you just get back up and think of some really good solutions with your team. Entrepreneurs are not only creative, they are optimistic in their thoughts also. So if you are going to be an entrepreneur you must have qualities of self motivation, optimism, solution finding etc.
Yes you can make a profitable start but never think that it will remain that way only because it is all the game of market and your product/service. Even amazon, Flipkart, Reliance face loses but they never fail to comeback with new business strategies according to the market.
Making a profitable start is awesome but making a stable start is far more fantastic.
So all the very best for your future startups and keep posting such interesting questions.