Look at your expenses very closely especially customer acquisition costs and LTV. Are you acquiring customers who will come back and use again? Will they tell their friends about you? How long before you pay back the money you spent on the customer? If your payback period is quick then you're on the right track.

I think one of the more important things is finding channels that organically help you to scale without having to spend a whole lot of money on acquisition. Hyper focusing on getting referral/organic growth is a great way to get to profitability.

Finally, really think hard about hiring. We grow our team very slowly and it helped us keep our burn relatively low.