Try not to do online. Try a previous teacher, or if you're at a different school, just try another teacher who seems friendly. They're usually flattered to be preferred over another teacher. Next try another student who seems to really get it, don't copy, make sure you understand what they're saying, or you might end up with advice from someone who really knows less than you. As a last resort the internet, because it's often a flood of too much info that doesn't answer your original question. No matter what, always double check with a teacher.