You can, if you just have the time and patience and the right resources.
Sketch something you want to draw, find some reference pictures on the internet and complete your drawing with your newfound knowledge.
If at first you don't succeed, try and try again.
When you get your first really good drawing done that you can be truly proud of, it will propel you forward.
Knowing you have tried and gotten over all the pitfalls, you know you can do it again.
And gradually, ever so slowly, you start knowing how to avoid the pitfalls in the first place. And you don't have to try so hard anymore. You'll still have to try or else there will be no drawing. But you'll know what you're doing and have confidence to get over any obstacles, should they arise.
Also, life drawing is something I should emphasize, but when you're just starting out, that's kind of boring and unrewarding. So I'd suggest start with drawing something you think would be really awesome and then do everything you can to make it work. Seeing something awesome you thought come to life is... awesome. Especially if it took a lot of work to get there.
