Hy, i'm very new in Odoo development and would like to start as proper as possible.

At the moment I have access to Odoo.sh databases and would like to use it while learning if possible. First question - what is the workflow you suggest? Using built in editor - Jupiterlab or something else? How in the first place can I use external editor - by coding on my machine pushing to Github and preview changes on database? 

At the moment i'm trying to learn by going through official documentation, if you have any recommended learning sources please share.

Also, how can I view tables in database inside Jupiterlab?