I was wondering from those who've created websites.
Like the Admin or any other members willing to help, if you could tell me errors i should look out for, or maybe any programs to set up coding and ways to set it up. any help would be nice

Watch your syntax and you will be fine. If you do keep getting one or two errors over and over and cannot find what is wrong, walk away for a bit and get someone else to look at the code. Chances are, you have just been staring at it for too long and your brain just skips over the error.