Hello Guys, 
I have been here little over 4 years now and i was wondering how bad or good American Accent do all ya people have ? I always try to speak in American Accent and i think i have improved little bit but it's not the best. So, i wanna know from all of you, how good English do ya all speak ? and how long did it take to learn speak with American Accent ? 
I think 4 years was a long time to learn American Accent but i failed on it and i maynot get American Accent now ? Becuase usually what i think is, If you can't improve your English in 4 years, you 'll never improve later ? Is that true ?

If you have a audio clip of ya'll speaking English and post it here, I would be much obliged and will learn something from your style of speaking. I just want to compare my American Accent to yours so that i know how bad i am. 
Or, maybe all Nepalese speak in a same way ?

Thanks.

Purana Kagaz.