>>7785430
You can do a couple of things to sorta boost your improvements, but it just takes time. Like drawing 1 object a day and using only 2 value tones, white and grey. Or drawing a landscape, etc. Just small bite-sized goals. If you try to bite off more than you can chew you will get burnt out. There's also a reason there's a bit of rough hewn path to art, such as fundamentals, as I pointed out here:
>~~~ Learn some basic anatomy/still-lifes, learn line weight and inking is the next progression, then onto values, then rendering and painting.
It's a logical progression that helps cover the basics, and you DON'T need to master each step. Just go through it and get it under your belt, especially if this is more of a hobby.
Also setting up a "still life" on your bed with something like a blanket, some fruit and a piece of glass like a bottle or bowl or cup would help a lot. And then just do a 2 or 3 value-tone study where you draw and observe what you see and you can only use 3 tones of monochrome black and white, ex: white, medium gray and black, which will slowly help develop how light interacts with objects.
There's also other exercises I would recommend, but these get kinda lost in the weeds and sometimes requires an instructor to help assist you if it's a bit confusing, like "blind contour drawings", where you draw without looking at your paper and follow the lines of the object you are drawing with your eye and syncing that with your hand on the paper as you draw without lifting the pencil. It's supposed to help with eye-hand coordination for drawing and tighten up your internal drawing accuracy. Drawing with your non-dominate hand is also a good fun exercise and drawing negative space exercises amongst others.
I'd also recommend looking at your local library or museum since they will offer some basic drawing classes cheap, if not free. Also colleges have some neutered art classes you can take for bargain.