Put down all the detail you can about your hosting environment, your WordPress install (plugins, themes, etc.), and the problem you are having. If you are seeing errors, copy them word for word into your post. It's best to include the full error than to summarize - sometimes wording is important. If you did something before you came across a problem, write down exactly what you did.
You can post links to screenshots to illustrate your issues, but don't use screenshots in place of a website link. Forum volunteers need a link to the webpage with the issue, to see a working (or broken) example of it.