One good and free software to record your screen is Bandicam ( http://www.bandicam.com/product/ ).
There you can find pretty good guides how to use this software and how to adjust your settings. You only need to adjust your settings once and then you are able to record your screen with one click.
We really appreciate if you share your big win videos here at BigWinPictures.com! We will post videos also on our YouTube channel: BigWinVideos
Please ask help if you have problems with the program installation.
We use this free and reputable service WeTransfer
Uploading is easy as abc.
1) In https://www.wetransfer.com main page click “Add files” and choose your video file from your computer.
2) Enter firstname.lastname@example.org as friend’s email address.
3) Enter your email address to the next field.
4) Type your custom message to the last field if you wish.
5) Click transfer and wait till your file is uploaded.