There's no morality to this - you're not working out if you're a good knitter or crocheter, or a bad one. There's no right or wrong way to knit or crochet - unless it's hurting you - it doesn't matter if you're tight or loose it just matters that the end result, and the process, is enjoyable to you.
It's so easy to feel like you've lost a part of yourself when you go through a slump and nothing inspires you. You haven't lost it, though, it's still there. It's just waiting for you to be ready to utilise it again.