Hi and welcome,

yes, what you describe is a nice feeling - when things come together after lots of hard work.

Hope to hear some of your music, I really enjoy writing songs about all kinds of silly things now that I know some theory under my belt. Any reason at all is a good one to me to throw some chords together, throw some words on paper and find someone who wants to join in on the madness. Which reminds me, your confidence will grow IF you find people who are good to play with - meaning they will help you along as you play together.

Good luck with your studies.