So, if anyone could be so kind as to give me some advice and help with this then that would be great.

If that is so, then what would be considered a good match to bring the chances up to breed a good rated horse?

I have heard that it has something to do with stats, something like matching horses that have weaker stats in let's say int, then breeding with another horse strong in that stat would increase the chance of breeding better?

Well that's as far as I got, I am not sure if that is wrong or if I should be looking at something else.

Matching is a delicate process that takes a lot of time to get the hang of, but generally there are two ways people pair horses for ratings. Firstly, they match strengths up and try to put weaknesses with things the other horse isn't weak in. Secondly, you could match strengths and weaknesses so that if a horse is weak in something, the other is strong in it. that's what you heard of, and that does make it more likely the foal would have stronger intelligence.

If you want better foals, using LB studs generally helps, but the random factor catches us all.