To begin, you should analyze your past performance to identify the trends, patterns, and factors that influenced your sales results. CRM, analytics, and dashboards are useful tools for collecting and visualizing data. When analyzing, consider metrics such as sales revenue, sales volume, conversion rate, customer retention, and customer satisfaction. You should investigate how much revenue you generated in total and per product or service. Additionally, look into the number of units sold and how this varied by season, region or customer segment. Furthermore, assess how many leads were converted into customers on average and the time and cost per conversion. Additionally, review the number of customers retained and their frequency of buying from you again. Lastly, measure customer satisfaction with your products, services and support.