Can I save my pickaxe

So I was enchanting my diamond pickaxe with efficiency 5, a fortune 3 unbreaking 3 book, before I tried to put mending on it. Looking back I probably should have put mending first. Anyways the levels needed really started to pile up and when I got to mending I couldn't enchant it- it said 'too expensive' I don't want to have to grind xp again so is there a way to save my pickaxe