The degree is not about practical knowledge, this is a common misconception, It is about bringing your level of knowledge up to a standard level and training you on ways to approach problems,
a purely DIY person will have gaps compared to the degree, but there significance greatly depends on the industry of work,
From your video, (I skimmed it, I'm more an atmel and stmicro guy myself) The first few thoughts are, your choice of microphone is less than cell phone quality, Why this matters is, with such a flattened and compressed voice, it is very difficult to pay attention for more than say 15 minutes before the average person zones out,
Next thought is you pad your vocabulary with many "umm" "err" etc, this comes down to bad habits i myself have had to correct, Communication is a large part of this field, as the concepts can be very precise and abstract, its better to pause that half second, than fill it with a noise, as it will detract, this also doubles on a physiological basis (people think your choosing your words rather than stumbling)
As for technical knowledge, you have shown you understand simulation, low level programming, and datasheets, as well as competent math (again i skimmed) None of this to me exactly stands out, and that the simulation tool is heavily focused on education makes me assume you where taught it in a class,
Equipment wise, you have a micro controller, and likely a multi meter, with a few passive devices, a micro can work as a low rate oscilloscope or logic analyser for under $5, it might not be great, heck it might not be good, but if its works, its a tool you can use to build your knowledge with, and for some ideas all it takes is some very crude tool to say yes or no on if something is possible,
I'll give an example for that, as i do not freely part with money, for a project, had to design a compact RFID reader that spat out a custom protocol, had to design a pcb antenna for 13.56Mhz, only had a frequency source that covered 8Mhz, dug up that i could use diodes and other active devices to generate harmonics of the signal, then made a band-gap filter with some passives to double the frequency of my source to test it, It worked, and now there are hundreds sold without issue, total parts cost about $6.80.again crude go-no go test,
To wrap it up, if you think learning a particular skill or topic will defiantly make you eligible or a job, then go for it, but dont burn yourself out on it, find challenges that are slightly beyond what you know and try and beat them, with all skills, if you have strong motivation to learn it, you will retain it better, and hopefully come to understand the ins and outs of why over just "do this, but never this"
An engineer can do with a dollar what a user can do with $100