Can somebody help me correct these senntences?

[scott833]

1) What is your proficiency/fluency in English?
2) I used to be harworking and i love to read, but as i get older my characteristic changed.
3) I want to hear you play the piano.
4) Can you play the piano for me?

[Anglika]

Are these an assignment? If so, please identify the faults yourself, re-post and someone can then comment. We are not here to do your work for you.

[scott833]

1) Sorry for my mistake. It is not homework assignment, i want to improve my english, so everytime when i don't know how to write something or express something with words i will seek for help on this website. Can you teach me how to write a good and appropriate title? Thanks

[TheParser]

1) What is your proficiency/fluency in English?
2) I used to be harworking and i love to read, but as i get older my characteristic changed.
3) I want to hear you play the piano.
4) Can you play the piano for me?

***NOT A TEACHER***Nos. 3 & 4 are fine. Perhaps you might consider this for No. 1: How fluent are you in English? And No.2 might be something like: I used to be hardworking and to love reading, but some of my attitudes and interests have changed as I get older. (Keep writing something every day, and your English will get better and better.) Thank you.