Guys Please Help I Need Solution

Guys please help me with this problem
I -have been having this problem with my computer recently and I need an urgent assistance please
1 I am one of the fortunate guys that enjoying the MTN night plane, but the connection is too slow that it takes 15-20mins to open a web.

2-I tried to hide my ip address with a software to enable me visited a sit which does not open until I hid my ip but surprisingly, I was unable to open any sit after setting hide my ip software, so I decided to delete it since then my explorer could not open any site again including common yahoo.

3-Before the ip incident and now, I could not login my yahoo and mail.com ids with my computer but I can on my phone, yahoo would respond with this, Invalid ID or password.
Please try again using your full Yahoo! ID, and type the text you see in the picture below.

Please bros dem I need una urgent helpoo cuz I no fit work anything now, thanks in advance ,

#Why do you need that solution?

If have  a problem with any of the threads, kindly let me know so that i can understand your question cuz it's not clear.