Be sure to factor in the amount of time you're spending, including travel, planning, retouching, etc.
Do you include hair and makeup with your sessions, incur location fees, or other hidden costs?
You need to know what items are selling, and you also need to know how much money you're making on each.
As an example, if you're selling an album with almost every session, but it's taking too much time to create for the amount of profit you are making, you need to make a change, and either increase the selling price of your albums or find a faster way to create them.
Now that you've reminded yourself WHY you're in this business, take a couple of minutes to review the past year in your mind.
What were some of your greatest successes, or things that went so well you will definitely want to repeat them?
At the end of the day, if you have the best photography in the world, but don't set your prices for profitability, none of it will matter because you won't be in business for long.
If you don't know your cost of doing business, my article, on Calculating Your Cost of Doing Business will help you get started.
Don't forget about costs like image retouching and album creation time when you're doing the calculation, however.
Even though you're not paying yourself each time you prepare an order, there is an associated cost, and it should be factored in.