I recently signed up for the free two week trial, and have been dry running the first suggested flight offline (Oceano to San Luis), flying the route and working the radios to no one in particular as I go

By this stage I was lined up over the hills to make the base leg for 29, and then made a real hash of trying to change to 11. Afterwards I discussed with some other simmers / qualified pilots what they would have done. As they are from all round the world, I got 3 or 4 versions

Given that I was already close to the runway and lined up with base leg for 29 at pattern altitude, would it be correct to overfly the runway at midbeam and pattern altitude + 500, then carry out a descending loop along bearing 110 outbound / 290 inbound and rejoin the left hand pattern for 11 at pattern altitude? This took me quite close to the small hill on the far side of the runway. I have attached a picture for illustration. The pattern illustrated is not quite 1nm, should patterns always be flown at exactly this distance?
I am completely new to flying online and want to take my simming more seriously, with perhaps continuing on at some point with the PPL lessons I took so far. A concern I have for my first flight is whether I need to know other radio calls than those outlined in the flight description?
Many thanks