The best thing is to read a SEO article on here.
But if you learn semrush, your get a good drift of SEO, remember only a idea of SEO, it takes a long time to understand SEO as it many methods and separate articles and statistics to understand and it a lifetime study as google algo changes a lot.
Example.
A 24/hr learn SEO book, took me 2 years to master each section and I still needed some help.
When you eventually understand knowing how to recognise what needed to beat your competition, it start to all fall in place , but takes time to understand the theory behind seo.
Semrush is a application to help break down a website in stats so you can beat the compitition in google algo.
Their other apps as well to learn.
Ahreff this app is very powerful can be used to do all SEO work, but mainly used to check backlinks and scrape them.
Moz a statistic app to help understand a domain strenth. mainly used for pa and da and spam score info/stats.
I am not going into more apps as your learning, and will confuse you.
Go slow and gd luck
Welcome.
