It’s fraught with pitfalls to give advice over the internet like this, but one thing that never fails is going back to basics. In this case, the basics of drawing. Try drawing 15-30 minutes every day, create a routine where you won’t forget it. If you don’t have time, don’t accept excuses from yourself, just do a 3 minute drawing in that case, it’s better than nothing and the routine isn’t broken.
Draw something simpler than you’d first think yourself capable of. That is, if you’re having trouble with humans, try inanimate objects. If you’re having trouble with complex shapes, try simple shapes.
And try to find a group or class that does life drawing, like once a week or whatever. It’s incredibly efficient and beneficial training. The scheduled time and the group fosters a feeling of “this is important, I have to really focus now”, and you work longer and harder than you would ever normally consider doing, just for practise.