Depends on how deep you want to dive. For a small, basic and static website I would say “yeah go ahead and try it”, but if you imagine with barely any time you will be able to do something big on your own, then i’ll be blunt and say, don’t waste your time. My argument for second statement is the following: If you get in legal trouble, you hire a lawyer to do the job well, fast, properly, etc. you don’t study law to argue your case because the field is absolutely huge and you won’t have the time.

Also to answer your question, yes I’d advise you to work with a teacher that can teach you the hard concepts and push you through the hard moments when possible. There are many things to learn and a lot of text to read and it’s very easy to lose motivation/energy and put it off, which something with a teacher you won’t be able to do.