as a chinese student , i find difficulty in learning both languages .Cuz i always mistakes many words. ej. advance avance perjuicio prejudice 。。。ect... ahora soy un loco de idioma.I can't pronounce well in both languages. Que me asigne un angle el Dios.
I recommend to you to practice Spanish in. The morning and English on the night , because if you practice at the same time you would to confuse some words and preposicions, trust me I learn Italian and Portuguese at the same time, and that was very confusing, good luck