How do I update my iPad 2 to iOS 8.3 if I have to do it myself?

Nobody in this forum connects to iPad 2s. Before updating make sure all your Apps are compatible with the new iOS, and that you have a backup of your bookmarks somewhere off your iPad, and any stored photos or movies off your iPad. Updates can take up excess space and risk losing data. To get more qualified answers, you can post to the correct forum below:

http://discussions.apple.com/docs/DOC-2463

Note, if you have iTunes on a Windows or Mac machine, one of those forums should be able to give you better help.

Not sure it is wise to update to 8.3. The ipad 2 has only 512meg of memory. All other ipads 8.3 supports have 1 to 2 gigs.

Robert