Are there anyone Thai nursing student?

Sawaddee Ka, My name is Care. I'm from Thailand. I've been in US. for 2 years. I'm going to take my pre-regs in Fall. Need your advice, Is it difficult to study RN in English language? I'm not pretty sure about my English skill so I will take more English subjects with pre-regs. How do you manage your time to study? Do you have any guide book to recommend ? Thank you