I decided I'll just rough it through on my own. It's the only way I'll learn.

BEAT HIM FUCK YEAH

He is Nothing compared to the Adjunicator and Old hero...

In the game I chose the knight class, should I save my demon souls for weapons or use them for magic?

Knight = melee. Weapons. I'm a temple knight and any stat that was 10+ is what i'm focusing on while ever now and again putting points in the other stats

well im farming for pure blade stones went 0/51 without LSS and then i went 0/20 with LSS.....

My knight is becoming a paladin :p
I haven't touched magic but my faith is up to 23 !

I dont see how that is relevant, I picked the game up about 2 hours before hand.

Just to say that you have harder challenges coming up. Compared to Old Hero/Adjunicator, Tower knight is a mere peanut.

Both the adjudicator and Old hero are among the easiest bosses in the game. I have beaten adjudicator twice and I have never been hit. If you put on the thief ring while fighting old hero, he cannot see you. He is fucking blind as hell.