You may want to start practicing by just sewing straight lines first on a scrap fabric so you get the hang of the machine. A tip for when you start making clothes, patterns can be kind of confusing. What I did was I took apart some of my old clothes or things I found from thrift shops and traced those pieces on tracing paper and used them as patterns. It skips past the pattern making process (which is annoying to learn at first) and everything is already in your size, plus you know how it should look in the end. Then you can add and elaborate on the basic patterns you have.
I hope I help and don’t sound prentious..
Good luck!