You must have the appropriate level to use a weapon

This has already been discussed before recently. So please check other posts before posting.

@ https://mcreator.net/forum/62151/how-make-logs-unbreakable-hand

This method is flawless. So if you know how to code you can switch things around to fit your needs.

@SubscribeEvent
    public void harvestCheck(PlayerEvent.BreakSpeed event)
    {
        BlockState block = event.getState();
        if (block.getBlock() instanceof LogBlock)
        {
            PlayerEntity player = event.getPlayer();
            ItemStack item = player.getItemStackFromSlot(EquipmentSlotType.MAINHAND);
            if (!(item.getItem() instanceof AxeItem))
            {
                event.setCanceled(true);
            }
        }
    }

However, @thesupermodder stated this (I haven't checked it to made sure it would work);

make 2 versions of it and use trigger and procedures to change it to a breakable version of this block.

Note:hardness should more than or equal to 10,000 but do not check "is block unbreakable?"