My splits always get set to my best sections. Does any one have a fix?

There's a hotkey for changing the comparison in the settings. You're probably hitting that by accident. You can change the comparison back by right clicking on it and hovering over "Compare Against".

Right click on the Livesplit window, you will see "Compare against", leading to options "Personal Best" and "Best Segments". You likely want to choose the first option. In the Livesplit settings, under "hotkeys" you can see hotkeys for "Switch Comparison (Previous/Next)". You might have pressed on one of them.

thanks dude, it worked