My daughter logged into her steam account using my computer. Since then steam has not...

My daughter logged into her steam account using my computer. Since then steam has not recognized my account name or password. I have searched and found I have two steam accounts generalrockz and generalrock**. I have changed the passwords and yet steam says the password change has been successful but when I try to sign in it tells me incorrect account or password. If I am asked to use gotcha to prove I am real person. Gotcha will say that I have completed the instructions correctly. Steam will tell me I have not completed them correctly and do nothing.**Now this happens every **** time I sign out of your program. This is getting really stupid especially when you want everyone to pay you to use your program. Then turn around and be cheap and not provide phone support and expect the issue to be self solved.