I do things very similar! Write, eat, pull open doors and drawers with my left. However I grab and carry, use scissors, wipe, use a mouse, and brush my teeth with my right. Anything else is literally either hand.
This is actually called mixed-handed and I find it to be so much more useful rather than restricting myself to one handed living - I can scroll using a mouse wheel with my right as I take handwritten notes with my left. Once you start to see your ability as not being restricted by your hand choice I think you may find this fact about yourself to be super cool and unique as well as highly useful!
I learned to do some basic things like that with my left hand after developing chronic tendinitis in my right. Brushing my teeth or eating, for example. It'd be surprisingly easy if it was just moving the cursor, but it's so ingrained that the index finger does the main clicking and the middle finger the secondary key that I couldn't get used to it.
I once mentioned to a left handed friend that I should really own my leftyness by learning to use a mouse with my left hand. She pointed out that by using our right hand we can also use our left hand to write notes at the same time, which is basically a superpower. That had never occurred to me before.