SEO/Backlinks Help Needed

Can anyone help - PS. I want you to teach me!!!!!

I am new to the marketing industry and would like someone to guide me.

I am fine up until getting the following done.

Build website - with correct onpage seo
Local citations and registrations
Social media marketing

Where i struggle is on helping the website gain rank in natural lisitings - I.e offpage seo. backlinks, pr sites etc. seems all confusing

Can you tell me the best methods to adapt - Whitehat Technique
What software to use to make it easier - Seonuke xcr ?

Would like a detailed step by step method to help my websites rank in the UK.
I am really confused as to where to start once the website is built. - what software to use, what is the aim to get the website rank higher etc.

Would really appreciate your help, i come across so much info and software and conflicting advice i do not know where to start.

A simple step by step guide or link would be helpful