Based on the information provided, it seems that your product has received a decent amount of exposure with 9000 impressions and 155 link clicks. However, the lack of sales may indicate that there could be issues with the product, targeting, or the overall marketing strategy.

Before making a decision, here are a few steps to consider:

1. Analyze the data: Look deeper into the metrics provided by Facebook Ads. Examine the click-through rate (CTR), conversion rate, bounce rate, and demographics of the users who clicked on the ad. This data will help you understand if your targeting is off or if there are any specific issues with the product page or checkout process.

2. Assess the product-market fit: Evaluate whether the product aligns with the needs and desires of your target audience. Consider factors such as price, value proposition, competition, and market demand. If the product doesn't meet these criteria, it may be wise to consider changing the product.

3. Seek feedback: Reach out to potential customers or your target audience to gather feedback on the product. This could be done through surveys, social media polls, or direct conversations. Their insights can provide valuable information on potential improvements or necessary changes.

4. Test variations: If the product seems to have potential, consider testing different variations or angles to see if they resonate better with your target audience. This could involve tweaking the messaging, visuals, pricing, or even the target audience itself. A/B testing can help identify what works best.

5. Consider competition: Research your competitors to understand if they offer a similar product that might be more appealing to your target audience. Analyze their marketing strategies, customer reviews, and pricing to identify any gaps or opportunities for improvement.

6. Budget and time constraints: Evaluate your budget and the time you can allocate to this product. If you have limited resources, it might be more efficient to pivot to a different product or marketing strategy rather than investing more time and money into a product that doesn't show promising results.

Remember, this analysis is based on the limited information provided, and it is essential to consider the specific context of your product and target audience. Additionally, seeking advice from industry experts or conducting further market research can provide more insights into your specific situation.