Seems like more than bad luck to go for 13 seasons without getting a striker.
I think you're more likely to get a youngster in a position where you don't have a squad player, so if you already have 3 or 4 strikers you won't get one but I don't think there's anything you can do to choose what type of player you get.

Keep checking the transfer list regularly, there are good players to be had for only a few tokens but you have to get your timing right and get lucky.