I can do you one better, create a master sketch: a sketch that you don't pad/revolve/etc to form a 3D object. All your future sketches should attach to referenc

I can do you one better, create a master sketch: a sketch that you don't pad/revolve/etc to form a 3D object. All your future sketches should attach to references on the master sketch. Make the existing object/shape invisible so it's easier to work only with the master sketch. This mostly fixes the topo problem and as a bonus, it helps organize your thoughts into one sketch up front.