I want to upgrade my skills

I am in sales for last 6 years and I come from a banking background ,I have an experience in B2B SAAS for 1.8 years now .

I want to grow in my career, understand the industry . I am doing good but I have an urge to grow fast as all my friends have a good package and they are growing very fast,I feel left out and feel very bad of not having good package.

Can I look for some analytics course ? Or any one would like to recommend me something which can upgrade my skills.