Yeah, if you need help, you can always post here, and get great responses! I ran across another person learning iOS development as well with the same goal: become a Junior Developer. He’s also pivoted (@Philomath), and I shared with him someone on Twitter, who used to be a senior iOS dev at Apple, who gives away free time every week to help others prep for iOS development interviews:
Meanwhile, I have the goal of releasing my own app. I have similar background in telecommunications/ Python. You can read more about me here:
However, getting CWC+ was one of the best investments of my life. Through this, I met another awesome person @CalStark who is also releasing an app soon 
It’s one of the most vibrant communities I’ve been a part of. You won’t regret signing up!
On this, I just had to upgrade, because my 2014 Mac became too slow. Praise God I waited as long as I did too, because Apple released an industry-shattering new laptop in 2020 built on their own chipset (versus Intel).
The M1 MacBook (Air or Pro) broke through all types of records in terms of compute power, and the charge needed. The new simple architecture versus the complicated architecture of the Intel based chipsets makes a huge difference! I’m able to have 16 hours of battery life, listening to music and coding, before my M1 dies.
Also, instead of waiting two minutes for my project’s in Xcode to build as before (in iOS development you build the app, then run it on a Simulator), it now takes 10 seconds on the M1. I got one with 16 GB of RAM for an extra $200. However, the base model is a steal, and its eight GB should serve you well. I highly recommend getting this model.
See here for an interesting history of the Intel versus Apple Silicon chipset as well. It took them decades to get where they are, and the performance is astounding!! It’s the greatest innovation I’ve seen in hardware in years:
Cheers, thanks for posting, and may God bless you on this fruitful journey!
Andrew