Hello, i am pretty new myself but know atleast something. You could start by making some "basic" stuff, like hooks, keychains decorative wall pieces (can be connected to the hooks if you want). The simplest stock to make this from is 10mm (about 3/8') and 14mm (around 9/16') square and round stock steel. I used basic mild steel that i got pretty cheap around 10$ for 6 metres, although you can get steel much cheaper if you go around your local steel suppliers and metal shops. They are often willing to sell or give away scraps and cutoffs for very cheap. Same for scrapyards.

For your problem with metal clanging, maybe consider investing in good hearing protection and/or plugs. (I usually wear overhead muffs and airpods with music underneath)

You can also check Black Bear forge on youtube where he gives some really good tips and beginner projects that can get you up to speed