Where I can access my borrowing history?
That option is available if you have activated the "Recently returned" function. If you have, when you are logged into your account under "My OPL" (first click on the Catalog tab on the OPL main page, then on Check My Account in the drop-down menu), the last option at the left is Other/Recently Returned. Even though it says "recently," it will include every item you have checked out since you turned on the Recently Returned function.
If you don't have it turned on, look further down the page on the left, at "My Settings." Click on Privacy. There you will find a box you can check or uncheck, that says: "Enable Recently Returned. Disabling will permanently erase your Recently Returned history."
That is the button you want. Once you activate it, though, it will only show the items you have checked out since activation.
I hope this helps! Let us know if you have any problem.