I am contemplating on installing the Beta. i’m kind of worried about battery. The main reason I stopped doing betas was I had a problem with my battery (even though that was over three years ago I think) & I remember someone at the Apple store said no more betas. I’ve heard batteries life aren’t that good during betas. can you roll back if it’s not and the battery will improve?
I'd say don't do it. The primary purpose of betas (particularly at this early stage) is for developers to prepare their apps for new and improved technologies and to report any bugs that you find to Apple so that they can attempt to repair them prior to launch. If you have a spare device that you can play around with to evaluate the beta, fine. Most people should not install the beta on a primary phone device, particularly if you must rely on it when you are away from a computer or other devices.
If you back up your device to iTunes now, you can restore the device if you roll back to stable, but you cannot restore a backup prepared with the beta version back to an older version of iOS. So you would have to roll back to an older backup or you would have to start from scratch after installing without restoring your data. (That is not a problem for me; most apps that I use sync data with cloud services, so it takes a short amount of time for me to rebuild from scratch. Most people are not like this.)