5:11 AM, Tuesday May 10th 2022
Phrasing your question a different way may help - it seems to me what you're asking is, "is doing the lessons digitally better than not doing them at all?"
The answer to that is yes. Everything else is kind of irrelevant. You'll have an easier time avoiding rushing, staying on task, and generally sticking to the instructions using the recommended tools - but as you stated, that's not an option. So, the pitfalls you have to avoid will be larger, and you won't have access to official critique (which you don't anyway, given the budgetary concerns), but the information is still there for you to use.
At the end of the day, you know what limitations apply to you. The resources are available to you regardless of how you choose to use them.