Sometimes, the startup costs of a new business are so high that for a few years it will run in the red. But if large profits are down the road, it's a good investment. The same goes for life. The highest pleasures demand the greatest investments, and also demand that you defer your gratification. When we invest our time in something, we should also look beyond immediate benefits to life-long ones.
Balance sheets keep a business up to date with sales and profits.
To make a profit, the books must be in good order, and brought up to date every day. This is the yardstick which determines in which direction the business will sail. Similarly, the Sages say that we should keep a spiritual accounting. Every night before going to bed, look back at that day's events, and evaluate where you profited or lost. Then, make a plan so the next day will be more productive.