While we're at it, for starting artists or webcomic artists who want to get better at drawing faster . . . we're not being dicks when we tell you "practice, practice, practice". Just like learning to play the piano or learning how to play your favorite sport, you don't just magically get good at it. Photoshop doesn't perform miracles, and neither do drawing tablets. Believe it or not, you still have to actually -draw- to use those things, and they won't use themselves.
I know because a lot of us say it a LOT that it seems we're all just in on this big secret artist joke we play on new artists, but that's so untrue that I'm frankly a little baffled some starting artists would think it IS a joke. Because it's not. It's so ridiculously serious and it seems silly for some, especially if they feel like they've been practicing for a long time. And yeah, it'll take more time than others to master their craft; some take a few months, others take a few years, and many take a lifetime.
And remember that even if you -think- you're the best at what you do, you probably still have more things you can improve in. Art is a constantly learning and evolving form. Draw every day. Not once a week, not once a month, -every day-. You won't get better if you only shove aside 20 minutes a week. Put an hour or two into drawing a -day-, and if you can't because of life, at least carry something with you so you can doodle for 20 minutes a day.
In contrast to that, don't think that because you've been spending 6 months practicing and you're still not satisfied that you're never going to get better. As I've said, it can take years. I know that sounds painful to the ears, but it's the truth. Don't drop the pencil and move on to something else if you aren't creating the most beautiful artwork every and making piles of cash from it. There's a reason they call them the "starving artists".
Just don't expect to be a natural Michelangelo because you wish for it hard enough, and don't scoff at the advice more experienced artists give you, especially when they tell you to just practice. They've been there. They've done that. They're not being silly or trying to make you feel bad. They are giving you a legitimate fact and they wouldn't be where they are today if they hadn't spent hours and hours and years and years of their life doing it.
Sit down. Grab a sketchbook or a piece of looseleaf. Start drawing. You're not gonna get better if you don't do it, and if you don't do it now, then when will you ever get a start on it? Even if you're still young, get started. If you're truly passionate about learning to draw, then putting your sweat, blood, and tears into learning it is the least you can do, and creating beautiful work that you're proud of the most, and more.