How many skill points?

I'm wondering how many is a good number for having essential skills on an alt. Thinking of leveling a new character but really don't want to do ALL the quest lines and ALL the skyshards again (doing it once was enough and my sorc has dozens unsent). I'd do the sprinkling in the guilds as usual, what's needed for rotation, keen eye and up to 2/3 medicinal use(mains got crafting covered).

Ideas? TIA!