Hi Michlen,
As far as the putting goes - yeh, its the most difficult aspect of the game.
I am no great putter, I'm far from the worst either - so, heres my approach.
1. You need to get your putting speed sorted out first. Whatever speed of green you are playing on, get the weight of the putt sorted out so that whatever length of putt you have, you can get your ball to go say 2 or 3ft past the hole. Dont worry about getting the ball in the hole right now. Just make sure your putts are ending up 2 to 3ft past the pin. If they drop - great.
2. So - you know you can get your putt up to the hole, so you dont have to worry about the speed. Now you can concentrate on working on the line - and this is going to take some practice.
3. I always putt from the reverse angle - that way you can see the read of the putt so much better, and you can watch the ball coming towards you. You get a much better idea of what the break is doing to the ball. Also, as Lee mentioned in another thread - try and visualize the putt before you hit the ball, just like IRL.
At the end of the day - its just practice and heaps of it.
Hole that helps.
Cheers
Doug