Does anyone knows where can i find those scrappers that asked me to in order to reach the next level?

Search for attitude in the transfer market and sign those with +2 for attitude.

where can i find terminators?

Same

Changes name on if you have the patch or not

and how can i improve my goalie's goal kicks

Put his training to goalkicks, assuming he has the space left to learn another skill, e.g. 3 star keeper with reflex +1, flying save +1, throw outs +1 cant learn it as he hasn't got a spare "space", but a 5* one with the same skills can.