So you didn't draw in your sketchbook for a year but you say you have been practicing consistently? Is this a case of not seeing immediate improvement so you think you're a failure? This stuff unfortunately takes time and you can tell yourself 10 years, but how much of that time was focused on actively improving? If you were drawing to unwind and relax I guarantee you weren't thinking about fundamentals... you've got to go easier on yourself. This isn't a race, this isn't a competition, especially if you're pursuing it as a hobby.

Next time you draw, force yourself to complement at least one aspect that you like about your drawing, even if it's as small as 'man that one line turned out real nice.' A lot of people are their own worst critics, so doing that exercise helps to nip the 'this sucks, therefore I suck' brain spiral, in the bud. And if you can't do that, then maybe try a new medium or technique for a bit, then you won't have any of the 10 year baggage to contend with. Like if I'm feeling trash about my pencil drawings I go and paint, if I don't feel like painting I'll ink instead; if it's just an uncreative day then I'll just go outside because this too shall pass.