Thank you so much! The first thing to remember is that its all about having fun, and to not worry about what your cosplay looks like compared to someone else, ESPECIALLY when you’re starting out, because that can just bring about some unwanted intimidation feels that you really don’t need. Honestly, just pick a character and go for it. Don’t be afraid to ask for tips on how to make stuff, or look at tutorials or whatnot, or heck, if you can’t make certain parts don’t be afraid to go out and buy bits and pieces, places like Goodwill are your friend (especially around Halloween).
This fabulousness (quoting you and smiling while I do so) is from years and years of cosplay, my first cosplay was back in 2004.
Like this is my first cosplay:

That was 10 years ago. The important thing to remember is that, just like with anything else, it takes times and practice and you’ll improve over time. So just pick who you want to cosplay and get going <3