RAYAKUMA'S PROFILE

So in a nutshell, I'm making a game rn and I want to include a function where certain techniques are linked to specific equipment,
so to speak, if my character wears The Amulet of Thor he's supposed to learn thunder moves that are supposed to level up over time,
like with materia in ff7 except the moves are supposed to be bound to the equipment,
so the character shouldnt be able to use them once the equipment is unequipped.

I'm relatively new into scripting and a bit overwhelmed.

I'm thinking about using a parallel process like

"if "Equipment" is on, "Character" Learns "Move" and if not he forgets, but how do I best setup the value to level up skills?

I mean I would just use a conditional branch like "if value xy is at "exp" learn "Level 3 Move" else if Value XY is at "exp" Learn "level 2 move" you get the picture but how can I make it so the character only gets "exp" for that move when he uses the corresponding skill?