considering you can "decipher" those pieces... and that you have been playing for over a year i think i can make a few suggestions...
you will hear this suggestion a lot from any teachers, and it does sound like a very tiresome and boring thing to practice at first, but if you study the well-tempered clavier by Bach you will improve tremendously, and very quickly too :)
https://imslp.org/wiki/Well-Tempered_Clavier%2C_Book_1_Nos.1-12%2C_BWV_846-857_%28Bach%2C_Johann_Sebastian%29https://imslp.org/wiki/Well-Tempered_Clavier%2C_Book_1_Nos.13-24%2C_BWV_858-869_%28Bach%2C_Johann_Sebastian%29i would suggest starting with the first prelude and fugue, and then learning the second prelude and fugue and then the ninth or thirteenth prelude and fugues
the difficulty of those pieces depends on the student really... many people find the sixth prelude and fugue easier than the first, and the third easier than the second, and so on.
the trouble however, with these pieces, is that people that are not familiar with fugues and contrapuntal music, they are difficult to understand and like... And you might want to listen to them first before you actually play them (the Gould and Richter recordings are my favourites). that way you can find a piece that you like and have an idea of playing it prior to actually
playing it (which is very helpful)
there are also some Schubert sonatas that are moderately easy to play
for example...
the second movement from this piece,
https://imslp.org/wiki/Piano_Sonata_D.664_%28Schubert%2C_Franz%29the first movement from this piece,
https://imslp.org/wiki/Piano_Sonata_D.894_%28Schubert%2C_Franz%29and... Mozart
this fantasia is easy and you will learn a lot about playing mozart from studying it(the "presto" parts can be played "allegro")
this is the easiest sonataI would not recommend very many Beethoven pieces to students... even in his easier pieces there are a lot of awkward fingerings and places that are simply unpianistic... which beginners might find discouraging
however!
the third bagatelle from
this collectionthe first bagatelle from this collection
https://imslp.org/wiki/Bagatelles%2C_Op.126_%28Beethoven%2C_Ludwig_van%29don't play the first movement of the moonlight sonata, you will drive yourself mad from memorizing broken chords and eventually you will regret learning such a piece.
i will suggest more pieces later after i remember some of them... excuse my typing but it's already late in the day now and i must practice
chau