You should use a better subject line for your posts!  hiiiiiii is not going to get many responses :)

1. Create your own 'User Account' page (simply add a new page, and call it something like 'my account' - no need to include it in the menu).
2. Try find a 'change password' module on snowcovered, add this to your page - or you could make your own if you have the required experience.
3. Go to Admin>Site Settings > Advanced settings, and select you page created in 1. as the 'user page' (under the page management heading).

Good luck.

Tim