Sorry, didn't see this before now. Oh yeah, I have suggestions.
The classical way to learn to draw is outlined in The Natural Way to Draw by Kimon Nicolaides, published, I believe, in the '40's. That was my main text the first year or two of college.
The more "modern" take on that is Drawing on the Right Side of the Brain by Betty Edwards. Personally, I think the instructions are identical to Nicolaides' with a bunch of psychology tossed in, but a lot of people seem to prefer it (Nicolaides' text is pretty dry.)
If I remember correctly, both of those focus mainly on figure drawing (the thinking being, if you can draw the human figure well, you can draw anything.)
If you're set on self-teaching ... get a pencil and paper and start drawing! And keep everything, at least at first, and check it in a couple years ... if you've really been practicing, you should be able to see the improvement. Don't expect too much of yourself in the beginning; try to enjoy the
process of drawing, rather than the
results. (Hard, I know, esp. for adults. We're so tough on ourselves!)
I don't know what kind of drawing you (ultimately) want to do, but I also highly recommend the Urban Sketchers approach. This is a world-wide, er, group? Organization? Both of those make it sound more organized than it is. :-) But the idea is ... you get a drawing utensil, a sketchbook, go out in the world, draw whatever you see ... then post it on the internet. There's a website for the international community, but there's tons of local chapters. For instance, there's one in the town near me, we post everything on a Facebook page. Some of the drawings are great, most are really awful, but the ones who keep at it the most are getting quite good at it. Plus from there you discover other styles, ideas, etc.
http://www.urbansketchers.org/ is the international site. They have a list of "official" chapters, with links, but there's unofficial chapters too (like the one near me.) Search Facebook. Here's one NOT near me:
--
https://www.facebook.com/groups/727152420728961. In particular check out John Hancock's work. Met him once; extraordinary artist, superlative teacher and really nice guy.
Finally, if this lockdown ever ends, find a class and take it. Not just for the instruction, but also to get feedback and connect with other artists. There might even be a formal art group in your area to join. The main thing is, hanging around with other artists is a great motivator to
keep drawing.
Hope this helps!
Signed, Your Friendly Neighborhood Professional Artist