There are many email service which you can access for managing the contact issues that you have. The email service is elemental and it is available round the clock from any place. The Gmail team is always there to enhance you experience with Gmail account and one of the best feature that Gmail has is that it allows you much more control on the account through the keyboard shortcut. So if your mouse is damaged or you do not have the mouse for some reason, you can always rely on the keyboard and work with the account. The Gmail team have developed several Gmail keyboard shortcuts and if you are aware of them, working the Gmail account becomes really easy indeed. However the keyboard shortcuts are information that you have learn and acquire with practice and patience and experience since it is not easy to remember all these shortcuts unless you regularly use them. Hence the Gmail shortcuts are matter of practice.
You can easily search the web for the Gmail shortcut list. Here there are websites which will give you complete information on the same. For a number of users, the first information on such shortcuts came from the websites where this kind of information is being shared. You can easily take them from there and list them separately and use them now and then so that you do not forget the use of the shortcuts. You can also try using the shortcuts randomly but at times it can happen that the random shortcut you pressed was meant for something completely different than what you intended and as a result you end up with lost information. Also checking the Google website for help and troubleshooting can give you all the information that you need for the same purpose.
Many users of the Gmail account who are new to the interface also prefer to directly communicate with the Gmail team and ask them about the information they want. The best way to learn something about Gmail is to visit Gmail help support service center to get latest update.