People don’t buy from people they don’t trust. Without establishing credibility with a new sales prospect you will fail to close the sale.
If you try to pitch your products and services too early you are unlikely to be able to close the sale. Closing comes at the end of the sales process so you need to understand the entire selling process first.
When you get the sales process working for you, you close more sales. The sales process is more than just pitching your products or services. When you get it right it works.