draw with a lighter lead, and dont press hard. Go with maybe an HB or a B, keep it sharpened, and keep your drawing loose until you get guidelines down. You can even use an H if you like, which might be a better idea because the point won't go dull as fast. When things start going wrong, erase and try again. Get a kneaded eraser (a smaller one will do, they come in two sizes), maybe a pink pearl (great for smaller details, because its like a stiff kneaded eraser but with the "crumbs") and a magic rub, and you're set to take on anything!
Doctors heal you, Artists immortalize you.
"Those who can, do. Those who can't, teach" - bullshit.
The usual staples for anatomy: