neocities tips/advice:
if you update your site and the changes aren't showing, go to your browser's history and clear the cache; when you refresh your site the changes should show!
what is directlinking/hotlinking? this refers to when you see an image on someone else's site, right click, select "copy image address", and use that as the src for the image on your site.
     why is this discouraged? doing this ends up using bandwidth from the site you took the image from, which can make it take longer to load. as a general rule of thumb, you should download the image and upload it to a neocities folder or other image sharing site like catbox.moe or imgur, then use the url from that as your image src.
some people will be mean, especially when you first start out. one thing i've noticed in the neocities community is that some people who know how to code well and have lots of practice tend to feel and act superior to those who are learning rather than trying to be helpful and encouraging. try not to take it personally and just do what makes you happy!