Understandable that you find Catalan challenging, since it's a hybrid of Spanish and French. Still, props to you for actually learning such a language. How did you manage it in such a short time?
Ah, takes me back to when I tried learning Cantonese and Japanese when I previously lived in Hong Kong, but fell short too. They're both tonal languages which definitely are not my suit.
So, in order to compensate more for your difficulty with phonics, you relied on sight-reading and writing. If I too have the same difficulty in listening and speaking, would you suggest that I do the same with French, as it's a Romance language?
My alma mater offered a condensed/accelerated year of Catalan for people with several years of study with another Romance language. The lecturer was a native speaker from Barcelona, and the class was taught almost exclusively in Catalan (the less effective "Lets talk about the names of colors in Spanish" approach). I didn't take the whole year simply because my schedule didn't leave room for it 2nd semester. The only particular difficulties I remember are that Catalan had a touch of French's penchant for unpredictable silent letters, and accent marks that went both directions (ouverta i tancada) over vowels except A (à only).