It is advised to include in your password different combination of characters like : *, ^, &, #, etc and combination between capital and normal letters as well as numbers : e, X, 4, M, P, l, 3. In order to create a strong password, there are several online services that can aid you in this matter. Use Google to find a website, where you can automatically generate a password that is hard to break. Use a service like the one mentioned to create a password and use it.