Originally Posted by bcarpio
I basically mean delete all the old data and start new specifically weight data so my previous weight data from like 3 years ago is deleted.
You can delete your weight data easily enough. Click on the weight tab, then click on "My Past Weights" on the left side of the page, up at the top. You'll have to select "x" to delete each weight individually, but there is no other way. Hopefully you don't have too many weights recorded so it won't take more than a few minutes.