I Find the Emails are Very Useful

Dear 龙飞虎，

Good afternoon! Thank you for your E-mail, it's very useful and important for me, your e-mail give me more confidence, I am very happy to read it . I like it , thanks again.

I think 我正在经历3个混合的stages:
I can't hear it clearly, and i don't know what it means.
I can hear it clearly, and I don't know what it means.
I can hear it clearly，and I know what it means, but I can't recall it to use it by myself.

I can understand most e-mail you send to me, but I can only a little "writing"&"talking". I hope i can progress quickly, but I know I must keep working.

Thanks for your help on my way learning English!