My pack lucks since 4 months

I understand your pain mate but thats how luck works sometimes.  I hadn't packed anything for months the last good one i could remember was HOL Van der saar but it turned a bit better after Ballon d'Or event and this TOTY event was best (though I got 105,106s and lot of my league mates packed 107s).  You got to reign your expectations..  hope you have checked the pack probabilities and you would know that its quite low for high OVR cards.  One best way would be to use the shard system to get the player you want, it might not be an entire overhaul but at least 1-2 at a time.  There is no magic there and you know what you get.