my character is full on heavy armor shield and one handed weapon i dont use magic at all cept healing


i was wondering if its ok to finish a game with out investing any perks in to magic skills

Of course it is. It's ES. You do what you want!

Yes sir there is no need to cast spells if you don't want the only "trouble" you may have involves entry into the college of winterhold BUT if you use a trinket to increase magicka you can gain access and only need to cast 1 spell.