How To Stop Hacking Of My E-mail?

Change your password immediately, and run antivirus software on your computer. If you don't have any, you can download some free like AVG. You should also try running some free or bought anti-spyware and anti-malware or malware and spyware detection software. Run it all, and delete all cookies/cache from your computer. If you find any virus, spyware or malware, clean/delete it and you might want to change your password a second/third time to make sure nobody has any further access to it. If email has been sent from your account to your friends' and it wasn't from you, you should definitely change your password and alert all of your email contacts that your account has been compromised and to not click on any links or open any attachments that have been sent to them from your account recently. This is called phishing, and they use it to get into your account and pretend to be you to send links to people you know. Then once you've changed your password, and made sure your computer is free or any malware or spyware or viruses, your account will be secure again and safe.