Can open, worms everywhere.
and don’t eat carbs in the 2-3 hours running up to a ride
Not a very practical suggestion for most people I would think!
You don’t need carbs for endurance riding which is generally at a lower intensity than an all out racing speed for which you do need a small amount of carbs, teach your body to burn fat
OMG….
OP, you’re really better off going to a dedicated sports nutritionist rather than reading all the baloney on here.