Also, I used to offload the ball often only for it to be intercepted/lose 10m ground what seemed like 80% of the time. Now that I have played the game a lot, my offloads are getting a lot better. I'm doing some pretty classy offloads now. Of course, theres always the odd one that goes to the opposition...
So basically, give it time. Your reactions or whatever will get better and you'll be finding yourself instinctively when/how to offload when the situation arises... You'll get better.